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U.S. Route 1 or U.S. Highway 1 (US 1) is a major north–south
United States Numbered Highway The United States Numbered Highway System (often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. As the designation and numbering of these h ...
that serves the
East Coast of the United States The East Coast of the United States, also known as the Eastern Seaboard, the Atlantic Coast, and the Atlantic Seaboard, is the region encompassing the coast, coastline where the Eastern United States meets the Atlantic Ocean; it has always pla ...
. It runs from
Key West Key West is an island in the Straits of Florida, at the southern end of the U.S. state of Florida. Together with all or parts of the separate islands of Dredgers Key, Fleming Key, Sunset Key, and the northern part of Stock Island, it con ...
,
Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...
, north to
Fort Kent, Maine Fort Kent ( French: ''Fort-Kent'') is a town in Aroostook County, Maine, United States, situated at the confluence of the Fish River and the Saint John River, on the border with New Brunswick, Canada. The population was 4,067 in the 2020 cens ...
, at the
Canadian border The borders of Canada include: * To the south and west: An international boundary with the United States, forming the Canada–United States border, longest shared border in the world, ; (Informally referred as the 49th parallel north which make ...
, making it the longest north–south road in the United States. US 1 is generally paralleled by
Interstate 95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from U.S. Route 1 (US 1) in Miami, Florida, north to the Houlton–Woodstock Border Crossing between Maine and the ...
(I-95), though US 1 is significantly farther west and inland between
Jacksonville, Florida Jacksonville ( ) is the most populous city proper in the U.S. state of Florida, located on the Atlantic coast of North Florida, northeastern Florida. It is the county seat of Duval County, Florida, Duval County, with which the City of Jacksonv ...
, and
Petersburg, Virginia Petersburg is an independent city (United States), independent city in the Commonwealth (U.S. state), Commonwealth of Virginia in the United States. As of the 2020 United States census, 2020 census, the population was 33,458 with a majority bla ...
, while I-95 is closer to the coastline. In contrast, US 1 in Maine is much closer to the coast than I-95, which runs farther inland than US 1. The route connects most of the major cities of the East Coast from the
Southeastern United States The Southeastern United States, also known as the American Southeast or simply the Southeast, is a geographical List of regions in the United States, region of the United States located in the eastern portion of the Southern United States and t ...
to
New England New England is a region consisting of six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York (state), New York to the west and by the ...
, including
Miami Miami is a East Coast of the United States, coastal city in the U.S. state of Florida and the county seat of Miami-Dade County, Florida, Miami-Dade County in South Florida. It is the core of the Miami metropolitan area, which, with a populat ...
,
Jacksonville Jacksonville ( ) is the most populous city proper in the U.S. state of Florida, located on the Atlantic coast of North Florida, northeastern Florida. It is the county seat of Duval County, Florida, Duval County, with which the City of Jacksonv ...
, Augusta, Columbia,
Raleigh Raleigh ( ) is the List of capitals in the United States, capital city of the U.S. state of North Carolina. It is the List of municipalities in North Carolina, second-most populous city in the state (after Charlotte, North Carolina, Charlotte) ...
,
Richmond Richmond most often refers to: * Richmond, British Columbia, a city in Canada * Richmond, California, a city in the United States * Richmond, London, a town in the London Borough of Richmond upon Thames, England * Richmond, North Yorkshire, a town ...
,
Washington, D.C. Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with ...
,
Baltimore Baltimore is the most populous city in the U.S. state of Maryland. With a population of 585,708 at the 2020 census and estimated at 568,271 in 2024, it is the 30th-most populous U.S. city. The Baltimore metropolitan area is the 20th-large ...
,
Philadelphia Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
, Newark,
New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
,
New Haven New Haven is a city of the U.S. state of Connecticut. It is located on New Haven Harbor on the northern shore of Long Island Sound. With a population of 135,081 as determined by the 2020 U.S. census, New Haven is the third largest city in Co ...
,
Providence Providence often refers to: * Providentia, the divine personification of foresight in ancient Roman religion * Divine providence, divinely ordained events and outcomes in some religions * Providence, Rhode Island, the capital of Rhode Island in the ...
,
Boston Boston is the capital and most populous city in the Commonwealth (U.S. state), Commonwealth of Massachusetts in the United States. The city serves as the cultural and Financial centre, financial center of New England, a region of the Northeas ...
, and
Portland Portland most commonly refers to: *Portland, Oregon, the most populous city in the U.S. state of Oregon *Portland, Maine, the most populous city in the U.S. state of Maine *Isle of Portland, a tied island in the English Channel Portland may also r ...
. While US 1 is generally the easternmost of the main north–south U.S. Routes, parts of several others occupy corridors closer to the ocean. When the road system was laid out in the 1920s, US 1 was mostly assigned to the existing Atlantic Highway, which followed the Atlantic Seaboard Fall Line between the
Piedmont Piedmont ( ; ; ) is one of the 20 regions of Italy, located in the northwest Italy, Northwest of the country. It borders the Liguria region to the south, the Lombardy and Emilia-Romagna regions to the east, and the Aosta Valley region to the ...
and the
Atlantic Plain The Atlantic Plain is one of eight distinct physiographic regions of the United States, physiographic divisions of the contiguous United States. Using the USGS physiographic classification system, the Atlantic Plain division comprises two provinc ...
north of
Augusta, Georgia Augusta is a city on the central eastern border of the U.S. state of Georgia (U.S. state), Georgia. The city lies directly across the Savannah River from North Augusta, South Carolina at the head of its navigable portion. Augusta, the third mos ...
. At the time, the highways farther east were of lower quality and did not serve the major population centers. From
Henderson, North Carolina Henderson is a city in and the county seat of Vance County, North Carolina, United States. The population was 15,060 at the 2020 census. History The city was named in honor of former North Carolina Supreme Court Chief Justice Leonard Hender ...
, to
Petersburg, Virginia Petersburg is an independent city (United States), independent city in the Commonwealth (U.S. state), Commonwealth of Virginia in the United States. As of the 2020 United States census, 2020 census, the population was 33,458 with a majority bla ...
, it is paralleled by
I-85 Interstate 85 (I-85) is a major Interstate Highway in the Southeastern United States. Its southern terminus is at an interchange with I-65 in Montgomery, Alabama; its northern terminus is an interchange with I-95 in Petersburg, Virginia, n ...
. Construction of the Interstate Highway System gradually changed the use and character of US 1, and I-95 became the major north–south East Coast highway by the late 1960s.


Route description

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Florida

US 1 travels along the east coast of
Florida Florida ( ; ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders the Gulf of Mexico to the west, Alabama to the northwest, Georgia (U.S. state), Georgia to the north, the Atlantic ...
, beginning at 490 Whitehead Street in
Key West Key West is an island in the Straits of Florida, at the southern end of the U.S. state of Florida. Together with all or parts of the separate islands of Dredgers Key, Fleming Key, Sunset Key, and the northern part of Stock Island, it con ...
and passing through
Miami Miami is a East Coast of the United States, coastal city in the U.S. state of Florida and the county seat of Miami-Dade County, Florida, Miami-Dade County in South Florida. It is the core of the Miami metropolitan area, which, with a populat ...
,
Hollywood Hollywood usually refers to: * Hollywood, Los Angeles, a neighborhood in California * Hollywood, a metonym for the cinema of the United States Hollywood may also refer to: Places United States * Hollywood District (disambiguation) * Hollywood ...
,
Fort Lauderdale Fort Lauderdale ( ) is a coastal city located in the U.S. state of Florida, north of Miami along the Atlantic Ocean. It is the county seat of and most populous city in Broward County with a population of 182,760 at the 2020 census, making it ...
,
Boca Raton Boca Raton ( ; ) is a city in Palm Beach County, Florida, United States. The population was 97,422 in the 2020 United States census, 2020 census and it ranked as the 23rd-largest city in Florida in 2022. Many people with a Boca Raton Address, ...
,
West Palm Beach West Palm Beach is a city in and the county seat of Palm Beach County, Florida, United States. It is located immediately to the west of the adjacent Palm Beach, Florida, Palm Beach, which is situated on a barrier island across the Lake Worth Lag ...
,
Jupiter Jupiter is the fifth planet from the Sun and the List of Solar System objects by size, largest in the Solar System. It is a gas giant with a Jupiter mass, mass more than 2.5 times that of all the other planets in the Solar System combined a ...
,
Fort Pierce Fort Pierce is a city in and the county seat of St. Lucie County, Florida, United States. The city is part of the Treasure Coast region of Florida’s Atlantic Coast. It is also known as the Sunrise City. Per the 2020 United States census, 2020 ...
,
Melbourne Melbourne ( , ; Boonwurrung language, Boonwurrung/ or ) is the List of Australian capital cities, capital and List of cities in Australia by population, most populous city of the States and territories of Australia, Australian state of Victori ...
,
Cocoa Cocoa may refer to: Chocolate * Chocolate * ''Theobroma cacao'', the cocoa tree * Cocoa bean, seed of ''Theobroma cacao'' * Chocolate liquor, or cocoa liquor, pure, liquid chocolate extracted from the cocoa bean, including both cocoa butter and ...
, Titusville,
Daytona Beach Daytona Beach is a coastal resort city in Volusia County, Florida, United States. Located on the East Coast of the United States, its population was 72,647 at the 2020 census. It is part of the Deltona–Daytona Beach–Ormond Beach metropo ...
,
Palm Coast Palm Coast is a city in Flagler County, Florida, United States. As of the 2020 United States census, the population was 89,258, an increase of almost 200% since the 2000 count of 32,832. The population was estimated to be 98,411 as of July 1, ...
,
St. Augustine Augustine of Hippo ( , ; ; 13 November 354 – 28 August 430) was a theologian and philosopher of Berber origin and the bishop of Hippo Regius in Numidia, Roman North Africa. His writings deeply influenced the development of Western philosop ...
, and
Jacksonville Jacksonville ( ) is the most populous city proper in the U.S. state of Florida, located on the Atlantic coast of North Florida, northeastern Florida. It is the county seat of Duval County, Florida, Duval County, with which the City of Jacksonv ...
. The southernmost piece through the chain islands of the
Florida Keys The Florida Keys are a coral island, coral cay archipelago off the southern coast of Florida, forming the southernmost part of the continental United States. They begin at the southeastern coast of the Florida peninsula, about south of Miami a ...
, about long, is the two-lane
Overseas Highway The Overseas Highway is a highway carrying U.S. Route 1 (US 1) through the Florida Keys to Key West. Large parts of it were built on the former right-of-way of the Overseas Railroad, the Key West Extension of the Florida East Coast Ra ...
, originally built in the late 1930s after railroad tycoon
Henry Flagler Henry Morrison Flagler (January 2, 1830 – May 20, 1913) was an American industrialist and a founder of Standard Oil, which was first based in Ohio. He was also a key figure in the development of the Atlantic coast of Florida and founder ...
's
Florida East Coast Railway The Florida East Coast Railway is a Class II railroad operating in the U.S. state of Florida, currently owned by Grupo México. Built primarily in the last quarter of the 19th century and the first decade of the 20th century, the FEC was a p ...
's
Overseas Railroad The Overseas Railroad (also known as Florida Overseas Railroad, the Overseas Extension, and Flagler's Folly) was an extension of the Florida East Coast Railway to Key West, a city located beyond the end of the Florida peninsula. Work on the line ...
, which was built between 1905 and 1912 on stone pillars, was ruined by the
1935 Labor Day hurricane The 1935 Labor Day hurricane was an extremely powerful and devastating Atlantic hurricane that struck the southeastern United States in early September 1935. For several decades, it was the most intense Atlantic hurricane on record in terms of ...
. The rest of US 1 in Florida is generally a four-lane divided highway, despite the existence of the newer
I-95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from U.S. Route 1 (US 1) in Miami, Florida, north to the Houlton–Woodstock Border Crossing between Maine and the ...
not far away. Famous vacation scenic route State Road A1A is a continuous oceanfront alternate to US 1 that runs along the beaches of the
Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...
, cut only by assorted unbridged inlets and the
Kennedy Space Center The John F. Kennedy Space Center (KSC, originally known as the NASA Launch Operations Center), located on Merritt Island, Florida, is one of the NASA, National Aeronautics and Space Administration's (NASA) ten NASA facilities#List of field c ...
at
Cape Canaveral Cape Canaveral () is a cape (geography), cape in Brevard County, Florida, in the United States, near the center of the state's Atlantic Ocean, Atlantic coast. Officially Cape Kennedy from 1963 to 1973, it lies east of Merritt Island, separated ...
. North of Jacksonville, US 1 turns northwest toward
Augusta, Georgia Augusta is a city on the central eastern border of the U.S. state of Georgia (U.S. state), Georgia. The city lies directly across the Savannah River from North Augusta, South Carolina at the head of its navigable portion. Augusta, the third mos ...
; US 17 becomes the coastal route into
Virginia Virginia, officially the Commonwealth of Virginia, is a U.S. state, state in the Southeastern United States, Southeastern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States between the East Coast of the United States ...
, where US 13 takes over.
Google Maps Google Maps is a web mapping platform and consumer application offered by Google. It offers satellite imagery, aerial photography, street maps, 360° interactive panorama, interactive panoramic views of streets (Google Street View, Street View ...
street maps and
USGS The United States Geological Survey (USGS), founded as the Geological Survey, is an government agency, agency of the United States Department of the Interior, U.S. Department of the Interior whose work spans the disciplines of biology, geograp ...
topographic map In modern mapping, a topographic map or topographic sheet is a type of map characterized by large- scale detail and quantitative representation of relief features, usually using contour lines (connecting points of equal elevation), but histori ...
s, accessed vi
ACME Mapper
In Florida until the 1990s, US 1 used high-contrast markers (white text on a red background).


Georgia

The part of US 1 in
Georgia Georgia most commonly refers to: * Georgia (country), a country in the South Caucasus * Georgia (U.S. state), a state in the southeastern United States Georgia may also refer to: People and fictional characters * Georgia (name), a list of pe ...
, as it shifts from the coastal alignment in Florida to the Atlantic Seaboard Fall Line alignment in South Carolina, is generally very rural, passing through marshes and former
plantations Plantations are farms specializing in cash crops, usually mainly planting a single crop, with perhaps ancillary areas for vegetables for eating and so on. Plantations, centered on a plantation house, grow crops including cotton, cannabis, tobacco ...
between the towns and cities of Folkston, Waycross,
Alma Alma or ALMA may refer to: Arts and entertainment * ''Alma'' (film), a 2009 Spanish short animated film * ''Alma'', an upcoming film by Sally Potter * ''Alma'' (Oswald de Andrade novel), 1922 * ''Alma'' (Le Clézio novel), 2017 * ''Alma'' ( ...
,
Baxley Baxley is a city in Appling County, Georgia, United States. As of the 2020 census, the city had a population of 4,942. The city is the county seat of Appling County. History Baxley was first settled as a result of the Macon and Brunswick Rai ...
,
Lyons Lyon (Franco-Provençal: ''Liyon'') is a city in France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of the French Alps, southeast of Paris, north of Marseille, southwest of Geneva, Switzerland, north ...
,
Swainsboro Swainsboro is a city in Emanuel County, Georgia, United States. As of the 2020 census, the city had a population of 7,425. The city is the county seat of Emanuel County. History In 1822, the Georgia state legislature established "Swainsborough" ...
, and Augusta. The
Georgia Department of Transportation The Georgia Department of Transportation (GDOT) is the organization in charge of developing and maintaining all state and federal roadways in the U.S. state of Georgia (U.S. state), Georgia. In addition to highways, the department also has a li ...
has an ongoing plan to widen all of US 1 to four lanes with bypasses, which is more than 50 percent complete.


The Carolinas

In
South Carolina South Carolina ( ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders North Carolina to the north and northeast, the Atlantic Ocean to the southeast, and Georgia (U.S. state), Georg ...
, US 1 generally serves mostly rural areas as it falls west of
I-95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from U.S. Route 1 (US 1) in Miami, Florida, north to the Houlton–Woodstock Border Crossing between Maine and the ...
while the coastal areas are served by routes east of it. Starting in South Carolina, US 1 is paralleled by
I-20 I20, I 20 or I-20 may refer to: * Interstate 20, a highway in the southeastern United States * I-20 (form), a United States government document that provides supporting information for the issuance of a student visa or change of status * I-20 (rap ...
along the Atlantic Seaboard Fall Line through Aiken, Lexington, and Columbia to Camden and Lugoff. US 1 functions as a local two-lane road with occasional boulevard stretches. After Camden, US 1 continues northeast away from any Interstate toward Bethune,
Patrick Patrick may refer to: *Patrick (given name), list of people and fictional characters with this name * Patrick (surname), list of people with this name People *Saint Patrick (c. 385–c. 461), Christian saint * Gilla Pátraic (died 1084), Patrick ...
, McBee, and
Cheraw The Cheraw people, also known as the Saraw or Saura,Sebeok, Thomas Albert''Native Languages of the Americas, Volume 2.''Plenum Press, 1977: 251. were a Siouan-speaking tribe of Indigenous people of the Southeastern Woodlands,Swanton''The Indians ...
with no bypasses or four-lane sections except around Cheraw through the US 52 and
South Carolina Highway 9 South Carolina Highway 9 (SC 9) is a major state highway in the U.S. state of South Carolina. The highway travels from Cherry Grove Beach to the North Carolina state line upstate. The highway is currently the longest state highway ...
(SC 9) concurrencies. After SC 9, it continues northward into North Carolina as a two -lane highway. The
South Carolina Department of Transportation The South Carolina Department of Transportation (SCDOT) is a government agency in the US state of South Carolina. Its mission is to build and maintain roads and bridges and administer mass transit services. By state law, the SCDOT's function an ...
(SCDOT) has no plans to widen or bypass any US 1 alignments northeast of Camden to the North Carolina line. Between the South Carolina line and the US 74 bypass, US 1 is a two-lane road but sees a considerable amount of truck and tourist traffic of people cutting through from the US 74/ US 220 and
I-73 Interstate 73 (I-73) is a north–south Interstate Highway, currently located entirely within the US state of North Carolina. It travels , from northwest of Rockingham, North Carolina to northeast of Stokesdale, providing a freeway connec ...
/
I-74 Interstate 74 (I-74) is an Interstate Highway in the Midwestern and Southeastern United States. Its western end is at an interchange with I-80 in Davenport, Iowa; the eastern end of its Midwest segment is at an interchange with I-75 ...
corridor attempting to reach points south and east. US 1 goes through downtown Rockingham, with a bypass in the future plans. North of the North Carolina Highway 177 (NC 177) junction, it becomes four lanes or greater, becoming a superstreet with limited access and then becoming a limited access freeway. US 1 becomes a major artery for the state as it moves north of Rockingham. After Richmond County, it goes into Moore County with two expressway bypasses in
Southern Pines Southern Pines is a town in Moore County, North Carolina, United States. The population was 15,545 as of the 2020 census, up from 12,334 in 2010. History Founded as a winter health resort for Northerners,Southern Pines North Carolina 2040 Com ...
, Vass, and
Cameron Cameron may refer to: People * Clan Cameron, a Scottish clan * Cameron (given name), a given name (including a list of people with the name) * Cameron (surname), a surname (including a list of people with the name) ;Mononym * Cam'ron (born 19 ...
. US 1 continues with the
Jefferson Davis Highway The Jefferson Davis Highway, also known as the Jefferson Davis Memorial Highway, was a transcontinental highway in the United States in the 1910s and 1920s that began in Arlington County, Virginia, and extended south and west to San Diego, Cali ...
label through Lee County and Sanford, and on to Cary and
Raleigh Raleigh ( ) is the List of capitals in the United States, capital city of the U.S. state of North Carolina. It is the List of municipalities in North Carolina, second-most populous city in the state (after Charlotte, North Carolina, Charlotte) ...
. US 1 runs concurrently with US 64 through most of Cary, where the freeway recently underwent a major renovation and improvements that added lanes in both directions. North of Raleigh, US 1 (known as Capital Boulevard in northern Wake County) crosses I-540 and then again becomes a four-lane divided arterial to
I-85 Interstate 85 (I-85) is a major Interstate Highway in the Southeastern United States. Its southern terminus is at an interchange with I-65 in Montgomery, Alabama; its northern terminus is an interchange with I-95 in Petersburg, Virginia, n ...
near
Henderson Henderson may refer to: People *Henderson (surname), description of the surname, and a list of people with the surname * Clan Henderson, a Scottish clan Places Argentina *Henderson, Buenos Aires Australia *Henderson, Western Australia Canada *H ...
. The
North Carolina Department of Transportation The North Carolina Department of Transportation (NCDOT) is responsible for building, repairing, and operating highways, bridges, and other modes of transportation, including ferries in the U.S. state of North Carolina. History The North Carolina ...
(NCDOT) has begun a corridor study for this section of US 1 to determine the feasibility of transitioning the stretch of highway from I-540 to Wake Forest into a toll road. Moreover, NCDOT is planning to finish four-laning US 1 in Richmond County past NC 177 with a Rockingham bypass to the east. There are no plans from SCDOT to widen US 1 from the state line. From Henderson into Virginia, US 1 runs parallel with I-85 as a two-lane local road until the state line, where Virginia hosts a continuous third center lane for alternate passing toward US 58 before South Hill.


Mid-Atlantic

In the
Mid-Atlantic Mid-Atlantic or Mid Atlantic can refer to: *The middle of the Atlantic Ocean *Mid-Atlantic English, any mix between British and American English *Mid-Atlantic Region (Little League World Series), one of the United States geographic divisions of the ...
, US 1 generally serves some of the most populated areas of the east coast. Through
Virginia Virginia, officially the Commonwealth of Virginia, is a U.S. state, state in the Southeastern United States, Southeastern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States between the East Coast of the United States ...
, US 1 is paralleled by Interstates: the remainder of
I-85 Interstate 85 (I-85) is a major Interstate Highway in the Southeastern United States. Its southern terminus is at an interchange with I-65 in Montgomery, Alabama; its northern terminus is an interchange with I-95 in Petersburg, Virginia, n ...
to Petersburg,
I-95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from U.S. Route 1 (US 1) in Miami, Florida, north to the Houlton–Woodstock Border Crossing between Maine and the ...
through
Richmond Richmond most often refers to: * Richmond, British Columbia, a city in Canada * Richmond, California, a city in the United States * Richmond, London, a town in the London Borough of Richmond upon Thames, England * Richmond, North Yorkshire, a town ...
and Fredericksburg to
Alexandria Alexandria ( ; ) is the List of cities and towns in Egypt#Largest cities, second largest city in Egypt and the List of coastal settlements of the Mediterranean Sea, largest city on the Mediterranean coast. It lies at the western edge of the Nile ...
, and I-395 into
Arlington Arlington most often refers to: *Arlington, Virginia **Arlington National Cemetery, a United States military cemetery *Arlington, Texas Arlington may also refer to: Places Australia *Arlington light rail station, on the Inner West Light Rail in S ...
. In much of Virginia, US 1 was called the
Jefferson Davis Highway The Jefferson Davis Highway, also known as the Jefferson Davis Memorial Highway, was a transcontinental highway in the United States in the 1910s and 1920s that began in Arlington County, Virginia, and extended south and west to San Diego, Cali ...
by state law, although there are exceptions. South of Petersburg, it is known as Boydton Plank Road. Through some of
Fairfax County Fairfax County, officially the County of Fairfax, is a county in the Commonwealth of Virginia. With a population of 1,150,309 as of the 2020 census, it is the most populous county in Virginia, the most populous jurisdiction in the Washington ...
and Alexandria, it is called the Richmond Highway. In February 2021, Virginia renamed all remaining portions of the Jefferson Davis Highway in the state to Emancipation Highway beginning on January 1, 2022. US 1 crosses the
Potomac River The Potomac River () is in the Mid-Atlantic (United States), Mid-Atlantic region of the United States and flows from the Potomac Highlands in West Virginia to Chesapeake Bay in Maryland. It is long,U.S. Geological Survey. National Hydrography D ...
with I-395 on the
14th Street bridges The 14th Street bridges refers to the three bridges near each other that cross the Potomac River, connecting Arlington, Virginia and Washington, D.C. Sometimes the two nearby rail bridges are included as part of the 14th Street bridge complex. ...
and splits to follow mainly 14th Street and
Rhode Island Avenue Rhode Island Avenue is a diagonal avenue in the Northwest and Northeast quadrants of Washington, D.C., and the capital's inner suburbs in Prince George's County, Maryland. Paralleling New York Avenue, Rhode Island Avenue was one of the origina ...
through the
District of Columbia Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and Federal district of the United States, federal district of the United States. The city is on the Potomac River, across from ...
. US 1 is at the minimum of three lanes (with alternate passing) from the North Carolina state line to Petersburg with occasional four-lane divided sections. North of Petersburg is a four-lane undivided roadway at the minimum to the DC line. The route of US 1 from Petersburg to the state line is parallel with the Atlantic Seaboard Fall Line. From Petersburg onward, it is parallel with I-95. After exiting DC into
Maryland Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It borders the states of Virginia to its south, West Virginia to its west, Pennsylvania to its north, and Delaware to its east ...
, US 1 follows the Baltimore–Washington Boulevard, the first of several modern highways built along the
Washington–Baltimore combined statistical area The Washington–Baltimore combined metropolitan statistical area is a combined statistical area, statistical area, including the overlapping metropolitan areas of Washington metropolitan area, Washington, D.C. and Baltimore metropolitan area, B ...
corridor; I-95 is the newest, after the
Baltimore–Washington Parkway The Baltimore–Washington Parkway (also referred to as the B–W Parkway) is a controlled-access parkway in the U.S. state of Maryland, running southwest from Baltimore to Washington, D.C. The road begins at an interchange with U.S. Route&n ...
. US 1 runs through the
University of Maryland, College Park The University of Maryland, College Park (University of Maryland, UMD, or simply Maryland) is a public university, public Land-grant university, land-grant research university in College Park, Maryland, United States. Founded in 1856, UMD i ...
, campus in
College Park, Maryland College Park is a city in Prince George's County, Maryland, United States, located approximately from the northeast border of Washington, D.C. Its population was 34,740 at the 2020 United States census. It is the home of the University of Mary ...
. The route bypasses
Downtown Baltimore Downtown Baltimore is the central business district of the Baltimore, city of Baltimore traditionally bounded by Martin Luther King Jr. Boulevard (Baltimore), Martin Luther King, Jr. Boulevard to the west, List of streets in Baltimore#F, Frank ...
on North Avenue and exits the city to the northeast on Belair Road, gradually leaving the I-95 corridor, which passes through
Wilmington, Delaware Wilmington is the List of municipalities in Delaware, most populous city in the U.S. state of Delaware. The city was built on the site of Fort Christina, the first Swedish colonization of the Americas, Swedish settlement in North America. It lie ...
, for a straighter path toward
Philadelphia Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
. Around and beyond Bel Air, US 1 is a two-lane road, crossing the
Susquehanna River The Susquehanna River ( ; Unami language, Lenape: ) is a major river located in the Mid-Atlantic (United States), Mid-Atlantic region of the United States, crossing three lower Northeastern United States, Northeast states (New York, Pennsylvani ...
over the top of the
Conowingo Dam The Conowingo Dam (also Conowingo Hydroelectric Plant, Conowingo Hydroelectric Station) is a large hydroelectric dam in the lower Susquehanna River near the town of Conowingo, Maryland, Conowingo, Maryland. The medium-height, masonry gravity dam ...
before entering Pennsylvania. (Routed further north, US 1 bypasses the state of
Delaware Delaware ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic and South Atlantic states, South Atlantic regions of the United States. It borders Maryland to its south and west, Pennsylvania to its north, New Jersey ...
, unlike I-95.) The two-lane US 1 becomes a four-lane expressway, officially known as the John H. Ware III Memorial Highway, after the Pennsylvania representative, just after crossing into
Pennsylvania Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions o ...
. This bypass extends around
Oxford Oxford () is a City status in the United Kingdom, cathedral city and non-metropolitan district in Oxfordshire, England, of which it is the county town. The city is home to the University of Oxford, the List of oldest universities in continuou ...
and
Kennett Square Kennett Square is a borough in Chester County, Pennsylvania, United States. As of the 2020 U.S. census, Kennett Square had a population of 5,943. Kennett Square is located in the Delaware Valley and considered a suburb of both Philadelphia, t ...
, merging into the four-lane divided
Baltimore Pike The Baltimore Pike was an auto trail connecting Baltimore, Maryland, with Philadelphia, Pennsylvania. Today, parts of the road are signed as U.S. Route 1 in Pennsylvania, U.S. Route 1 (US 1), U.S. Route 13 in Pennsylvania, US 13, and a small p ...
just beyond the latter. At
Media Media may refer to: Communication * Means of communication, tools and channels used to deliver information or data ** Advertising media, various media, content, buying and placement for advertising ** Interactive media, media that is inter ...
, US 1 again becomes a freeway—the Media Bypass—ending just beyond
I-476 Interstate 476 (I-476) is a auxiliary Interstate Highway of I-76 in the U.S. state of Pennsylvania. The highway runs from I-95 near Chester north to I-81 near Scranton, serving as the primary north–south Interstate corridor through ea ...
. After several name changes, the road becomes
City Avenue U.S. Route 1 (US 1) is a major north–south U.S. Route, extending from Key West, Florida, in the south to Fort Kent, Maine, at the Canada–United States border in the north. In the U.S. state of Pennsylvania, US 1 runs for ...
, the western city limits of
Philadelphia Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
, at the end of which a short
overlap Overlap may refer to: * In set theory, an overlap of elements shared between sets is called an intersection, as in a Venn diagram. * In music theory, overlap is a synonym for reinterpretation of a chord at the boundary of two musical phrases * Ove ...
with
I-76 Interstate 76 or I-76 may refer to: Transportation * Interstate 76 (Colorado–Nebraska) (I-76), US * Interstate 76 (Ohio–New Jersey) (I-76), running through Pennsylvania, US Other uses * ''Interstate '76'', a vehicular combat video game for W ...
leads to the Roosevelt Expressway and then the 12-lane Roosevelt Boulevard partly overlapping US 13. US 1 again becomes a freeway after leaving the city, bypassing Penndel and Morrisville and crossing the
Delaware River The Delaware River is a major river in the Mid-Atlantic region of the United States and is the longest free-flowing (undammed) river in the Eastern United States. From the meeting of its branches in Hancock, New York, the river flows for a ...
into
New Jersey New Jersey is a U.S. state, state located in both the Mid-Atlantic States, Mid-Atlantic and Northeastern United States, Northeastern regions of the United States. Located at the geographic hub of the urban area, heavily urbanized Northeas ...
on the
Trenton–Morrisville Toll Bridge The Trenton–Morrisville Toll Bridge is one of three road bridges connecting Trenton, New Jersey with Morrisville, Pennsylvania. Opened on December 1, 1952, it carries U.S. Route 1 (US 1) and is owned and operated by the Delawa ...
. After crossing into
New Jersey New Jersey is a U.S. state, state located in both the Mid-Atlantic States, Mid-Atlantic and Northeastern United States, Northeastern regions of the United States. Located at the geographic hub of the urban area, heavily urbanized Northeas ...
in Mercer County, US 1 continues on the
Trenton Freeway U.S. Route 1 (US 1) is a U.S. Route which parallels the East Coast of the United States, running from Key West, Florida, in the south to Fort Kent, Maine, at the Canadian border in the north. Of the entire length of the route, of it ...
through the state capital of Trenton and Lawrence Township as a four-lane freeway. As the freeway ends, the four-lane divided highway upgrades to six lanes north of
I-295 Interstate 295 is the designation for the following eight Interstate Highways in the United States, all of which are related to I-95: *Interstate 295 (Delaware–Pennsylvania), a bypass of Philadelphia, Pennsylvania * Interstate 295 (Florida), a be ...
passing through the Penns Neck section of West Windsor. Through Penns Neck is a series of traffic signals. The
New Jersey Department of Transportation The New Jersey Department of Transportation (NJDOT) is the agency responsible for transportation issues and policy in New Jersey, including maintaining and operating the state's highway and public road system, planning and developing transport ...
(NJDOT) is looking to revamp the highway through this area by replacing traffic signals with grade separations. The highway enters Middlesex County through Plainsboro Township and South Brunswick, where the highest point resides. By Forrestal Village, the highway downgrades from six to four lanes until after Finnegans Lane in North Brunswick. Northward, it continues through
New Brunswick New Brunswick is a Provinces and Territories of Canada, province of Canada, bordering Quebec to the north, Nova Scotia to the east, the Gulf of Saint Lawrence to the northeast, the Bay of Fundy to the southeast, and the U.S. state of Maine to ...
as a short limited-access highway until the County Route 529 (CR 529)/Plainfield Avenue traffic signal in Edison. Through Edison and Woodbridge Township, US 1 has a mix of boulevard and limited-access segments and continues to do so after the US 9 juncture in the Avenel section of Woodbridge. The US 1/9
concurrency Concurrent means happening at the same time. Concurrency, concurrent, or concurrence may refer to: Law * Concurrence, in jurisprudence, the need to prove both ''actus reus'' and ''mens rea'' * Concurring opinion (also called a "concurrence"), a ...
continues through the rest of the state. The six-lane divided highway remains through Rahway in Union County and
Elizabeth Elizabeth or Elisabeth may refer to: People * Elizabeth (given name), a female given name (including people with that name) * Empress Elisabeth (disambiguation), lists various empresses named ''Elisabeth'' or ''Elizabeth'' * Princess Elizabeth ...
, until it reaches
Newark Liberty International Airport Newark Liberty International Airport is a major international airport serving the New York metropolitan area. The airport straddles the boundary between the cities of Newark, New Jersey, Newark in Essex County, New Jersey, Essex County and E ...
, where it becomes a dual carriageway freeway around downtown Newark in Essex County with a 2–2–2–2 configuration. The historic
Pulaski Skyway The Pulaski Skyway is a four-lane bridge-causeway in the northeastern part of the U.S. state of New Jersey, carrying a freeway designated U.S. Route 1/9 (US 1/9) for most of its length. The structure has a total length of . Its long ...
takes US 1/9 into
Jersey City Jersey City is the List of municipalities in New Jersey, second-most populous
, and the route exits the freeway at the
Tonnele Circle The Tonnele Circle is an intersection in Jersey City, New Jersey, United States. It is named after Tonnele TUN-uh-lee"Avenue, the north–south road that runs through it. Entrances and exits Entrances to and exits from Tonnele Circle are liste ...
to head north into
Bergen County Bergen County is the List of counties in New Jersey, most populous County (United States), county in the U.S. state of New Jersey.US 46 as a limited-access highway, and the three routes run northeast to the
George Washington Bridge Plaza The George Washington Bridge Plaza, also known as GWB Plaza or Bridge Plaza, is the convergence of roads and highways around the site of the George Washington Bridge toll plaza in Fort Lee, New Jersey, United States. The plaza is located nor ...
, where they merge into I-95. US 46 ends in the middle of the bridge, which crosses the
Hudson River The Hudson River, historically the North River, is a river that flows from north to south largely through eastern New York (state), New York state. It originates in the Adirondack Mountains at Henderson Lake (New York), Henderson Lake in the ...
into
New York New York most commonly refers to: * New York (state), a state in the northeastern United States * New York City, the most populous city in the United States, located in the state of New York New York may also refer to: Places United Kingdom * ...
, and US 9 exits just beyond onto
Broadway Broadway may refer to: Theatre * Broadway Theatre (disambiguation) * Broadway theatre, theatrical productions in professional theatres near Broadway, Manhattan, New York City, U.S. ** Broadway (Manhattan), the street ** Broadway Theatre (53rd Stre ...
in
Manhattan Manhattan ( ) is the most densely populated and geographically smallest of the Boroughs of New York City, five boroughs of New York City. Coextensive with New York County, Manhattan is the County statistics of the United States#Smallest, larg ...
, but US 1 stays with I-95 onto the
Cross Bronx Expressway The Cross Bronx Expressway is a major controlled-access highway, freeway in the New York City borough of the Bronx. It is mainly designated as part of Interstate 95 in New York, Interstate 95 (I-95), but also includes portions of Interstate ...
, exiting in
the Bronx The Bronx ( ) is the northernmost of the five Boroughs of New York City, boroughs of New York City, coextensive with Bronx County, in the U.S. state of New York (state), New York. It shares a land border with Westchester County, New York, West ...
onto Webster Avenue. Two turns take US 1 via
Fordham Road Fordham Road is a major thoroughfare in the Bronx, New York City, that runs west-east from the Harlem River to Bronx Park. Fordham Road houses the borough's largest and most diverse shopping district. It geographically separates the geopoli ...
to Boston Road, which it follows northeast out of the city, becoming Boston Post Road in
Westchester County Westchester County is a county located in the southeastern portion of the U.S. state of New York, bordering the Long Island Sound and the Byram River to its east and the Hudson River on its west. The county is the seventh most populous cou ...
, never straying far from I-95. From the Bronx to the state line, it is a local road with two lanes in each direction, except in
Rye Rye (''Secale cereale'') is a grass grown extensively as a grain, a cover crop and a forage crop. It is grown principally in an area from Eastern and Northern Europe into Russia. It is much more tolerant of cold weather and poor soil than o ...
where it has a single lane in each direction. As it enters
Greenwich, Connecticut Greenwich ( ) is a New England town, town in southwestern Fairfield County, Connecticut, United States. As of the 2020 United States census, 2020 census, it had a population of 63,518. It is the largest town on Gold Coast (Connecticut), Connectic ...
, it continues as a two-lane local road.


New England

In
New England New England is a region consisting of six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York (state), New York to the west and by the ...
, US 1 generally serves large cities in a side street capacity. In
Connecticut Connecticut ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Rhode Island to the east, Massachusetts to the north, New York (state), New York to the west, and Long Island Sound to the south. ...
, US 1 serves the shore of
Long Island Sound Long Island Sound is a sound (geography), marine sound and tidal estuary of the Atlantic Ocean. It lies predominantly between the U.S. state of Connecticut to the north and Long Island in New York (state), New York to the south. From west to east, ...
parallel to
I-95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from U.S. Route 1 (US 1) in Miami, Florida, north to the Houlton–Woodstock Border Crossing between Maine and the ...
. Beyond
New Haven New Haven is a city of the U.S. state of Connecticut. It is located on New Haven Harbor on the northern shore of Long Island Sound. With a population of 135,081 as determined by the 2020 U.S. census, New Haven is the third largest city in Co ...
, the highway travels east–west, and some signs in the state indicate this rather than the standard north–south. While I-95 in
Rhode Island Rhode Island ( ) is a state in the New England region of the Northeastern United States. It borders Connecticut to its west; Massachusetts to its north and east; and the Atlantic Ocean to its south via Rhode Island Sound and Block Is ...
takes a diagonal path to
Providence Providence often refers to: * Providentia, the divine personification of foresight in ancient Roman religion * Divine providence, divinely ordained events and outcomes in some religions * Providence, Rhode Island, the capital of Rhode Island in the ...
, US 1 continues east along the coast through Westerly to Wakefield-Peacedale, where it turns north and follows
Narragansett Bay Narragansett Bay is a bay and estuary on the north side of Rhode Island Sound covering , of which is in Rhode Island. The bay forms New England's largest estuary, which functions as an expansive natural harbor and includes a small archipelago. S ...
. Most of this part is a four-lane
limited-access highway A limited-access road, known by various terms worldwide, including limited-access highway, partial controlled-access highway, and expressway, is a highway or arterial road for high-speed traffic which has many or most characteristics of a contro ...
, providing access to Route 138 toward
Newport Newport most commonly refers to: *Newport, Wales *Newport, Rhode Island, US Newport or New Port may also refer to: Places Asia *Newport City, Metro Manila, a Philippine district in Pasay * Newport (Vietnam), a United States Army and Army of t ...
. After Route 4 splits as a mostly-
freeway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway, and expressway. Other similar terms ...
connection to I-95, US 1 becomes a lower-speed surface road, passing through
Warwick Warwick ( ) is a market town, civil parish and the county town of Warwickshire in the Warwick District in England, adjacent to the River Avon, Warwickshire, River Avon. It is south of Coventry, and south-east of Birmingham. It is adjoined wit ...
, Providence, and Pawtucket. The route parallels I-95 again through Providence and Pawtucket and into
Massachusetts Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode ...
, traveling toward
Boston Boston is the capital and most populous city in the Commonwealth (U.S. state), Commonwealth of Massachusetts in the United States. The city serves as the cultural and Financial centre, financial center of New England, a region of the Northeas ...
as a four-lane road. When it reaches Dedham, US 1 turns east and becomes a freeway through metropolitan Boston,
concurrent Concurrent means happening at the same time. Concurrency, concurrent, or concurrence may refer to: Law * Concurrence, in jurisprudence, the need to prove both ''actus reus'' and ''mens rea'' * Concurring opinion (also called a "concurrence"), a ...
with I-95 and
I-93 Interstate 93 (I-93) is an Interstate Highway in the New England states of Massachusetts, New Hampshire, and Vermont in the United States. Spanning approximately along a north–south axis, it is one of three primary Interstate Highways ...
east to Braintree and north through
Downtown Boston Downtown Boston is the central business district of Boston, Massachusetts, United States. Boston was founded in 1630. The largest of the city's commercial districts, Downtown is the location of many corporate or regional headquarters; city, c ...
. The
Tobin Bridge The Maurice J. Tobin Memorial Bridge (formerly the Mystic River Bridge) is a cantilever bridge, cantilever truss bridge that spans more than from Charlestown, Boston, Boston to Chelsea, Massachusetts, Chelsea over the Mystic River in Massach ...
and Northeast Expressway take US 1 out of Boston, after which it again parallels I-95 as a high-speed surface road through
Newburyport Newburyport is a coastal city in Essex County, Massachusetts, United States, northeast of Boston. The population was 18,289 at the 2020 census. A historic seaport with a vibrant tourism industry, Newburyport includes part of Plum Island. The m ...
to the New Hampshire state line. The short portion of US 1 in
New Hampshire New Hampshire ( ) is a U.S. state, state in the New England region of the Northeastern United States. It borders Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the east, and the Canadian province of Quebec t ...
follows the historic Lafayette Road, staying close to I-95, passing through
Portsmouth Portsmouth ( ) is a port city status in the United Kingdom, city and unitary authority in Hampshire, England. Most of Portsmouth is located on Portsea Island, off the south coast of England in the Solent, making Portsmouth the only city in En ...
before crossing the
Piscataqua River The Piscataqua River (Abenaki language, Abenaki: ''Pskehtekwis'') is a tidal river forming the boundary of the U.S. states of New Hampshire and Maine from its origin at the confluence of the Salmon Falls River and Cochecho River to the Atlant ...
on Memorial Bridge, which was demolished and replaced during 2012–2013, leaving a temporary gap in US 1. During construction, drivers had to detour to one of two other nearby bridges carrying US 1 Bypass or I-95. Within
Maine Maine ( ) is a U.S. state, state in the New England region of the United States, and the northeasternmost state in the Contiguous United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Provinces and ...
, US 1 begins as a parallel route to I-95 near the
Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...
. At
Portland Portland most commonly refers to: *Portland, Oregon, the most populous city in the U.S. state of Oregon *Portland, Maine, the most populous city in the U.S. state of Maine *Isle of Portland, a tied island in the English Channel Portland may also r ...
, I-95 splits off to the north, and
I-295 Interstate 295 is the designation for the following eight Interstate Highways in the United States, all of which are related to I-95: *Interstate 295 (Delaware–Pennsylvania), a bypass of Philadelphia, Pennsylvania * Interstate 295 (Florida), a be ...
heads northeast paralleling US 1 to Brunswick. There US 1 turns east as a mostly two-lane road along the coast to
Calais Calais ( , , traditionally , ) is a French port city in the Pas-de-Calais department, of which it is a subprefecture. Calais is the largest city in Pas-de-Calais. The population of the city proper is 67,544; that of the urban area is 144,6 ...
; much of this portion is advertised as the "Coastal Route" on signs. North from Calais, US 1 follows the
Canadian border The borders of Canada include: * To the south and west: An international boundary with the United States, forming the Canada–United States border, longest shared border in the world, ; (Informally referred as the 49th parallel north which make ...
, crossing I-95 in Houlton and eventually turning west and southwest to its "north" end at the Clair–Fort Kent Bridge in Fort Kent. The short Route 161 extends north on the
New Brunswick New Brunswick is a Provinces and Territories of Canada, province of Canada, bordering Quebec to the north, Nova Scotia to the east, the Gulf of Saint Lawrence to the northeast, the Bay of Fundy to the southeast, and the U.S. state of Maine to ...
(Canada) side of the bridge to Route 120, a secondary east–west route from
Edmundston Edmundston () is a city in Madawaska County, New Brunswick, Canada. Established in 1850, it had a population of 16,437 as of 2021. On January 1, 2023, Edmundston amalgamated with the village of Rivière-Verte, New Brunswick, Rivière-Verte and ...
,
New Brunswick New Brunswick is a Provinces and Territories of Canada, province of Canada, bordering Quebec to the north, Nova Scotia to the east, the Gulf of Saint Lawrence to the northeast, the Bay of Fundy to the southeast, and the U.S. state of Maine to ...
, west to
Quebec Route 289 Route 289 is a two-lane north/south highway on the south shore of the Saint Lawrence River in the Bas-Saint-Laurent region of eastern Quebec, Canada. Its northern terminus is in Saint-André-de-Kamouraska at the junction of Route 132 and the sout ...
toward
Saint-Alexandre-de-Kamouraska Saint-Alexandre-de-Kamouraska () is a municipality in the Canadian province of Quebec, in the Kamouraska Regional County Municipality. Before July 5, 1997, it was known simply as Saint-Alexandre. History The parish of Saint-Alexandre was foun ...
,
Quebec Quebec is Canada's List of Canadian provinces and territories by area, largest province by area. Located in Central Canada, the province shares borders with the provinces of Ontario to the west, Newfoundland and Labrador to the northeast, ...
.


History

The direct predecessor to US 1 was the Atlantic Highway, an
auto trail The system of auto trails was an informal network of marked routes that existed in the United States and Canada in the early part of the 20th century. Marked with colored bands on utility poles, the trails were intended to help travellers in t ...
established in 1911 as the Quebec–Miami International Highway. In 1915, it was renamed the Atlantic Highway, and the northern terminus was changed to
Calais, Maine Calais is a city in Washington County, Maine, United States. As of the 2020 census, it had a population of 3,079, making Calais the largest municipality by population in Washington County, but the third least-populous city in Maine (after Ha ...
. Due to the overlapping of auto trail designations, portions of the route had other names that remain in common use, such as the
Boston Post Road The Boston Post Road was a system of mail-delivery routes between New York City and Boston, Massachusetts, that evolved into one of the first major highways in the United States. The three major alignments were the Lower Post Road (now U.S. Ro ...
between
Boston Boston is the capital and most populous city in the Commonwealth (U.S. state), Commonwealth of Massachusetts in the United States. The city serves as the cultural and Financial centre, financial center of New England, a region of the Northeas ...
and
New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
, the
Lincoln Highway The Lincoln Highway is one of the first transcontinental highways in the United States and one of the first highways designed expressly for automobiles. Conceived in 1912 by Indiana entrepreneur Carl G. Fisher, and formally dedicated Octob ...
between New York and
Philadelphia Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
, the Baltimore Pike between Philadelphia and
Baltimore Baltimore is the most populous city in the U.S. state of Maryland. With a population of 585,708 at the 2020 census and estimated at 568,271 in 2024, it is the 30th-most populous U.S. city. The Baltimore metropolitan area is the 20th-large ...
, and the
Dixie Highway Dixie Highway was a United States auto trail first planned in 1914 to connect the Midwest with the South. It was part of a system and was expanded from an earlier Miami to Montreal highway. The final system is better understood as a network o ...
in and south of eastern
Georgia Georgia most commonly refers to: * Georgia (country), a country in the South Caucasus * Georgia (U.S. state), a state in the southeastern United States Georgia may also refer to: People and fictional characters * Georgia (name), a list of pe ...
. North of
Augusta, Georgia Augusta is a city on the central eastern border of the U.S. state of Georgia (U.S. state), Georgia. The city lies directly across the Savannah River from North Augusta, South Carolina at the head of its navigable portion. Augusta, the third mos ...
, the highway generally followed the Atlantic Seaboard Fall Line, rather than a more easterly route through the
swamp A swamp is a forested wetland.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p. Swamps are considered to be transition zones because both land and water play a role in ...
s of the
Atlantic Plain The Atlantic Plain is one of eight distinct physiographic regions of the United States, physiographic divisions of the contiguous United States. Using the USGS physiographic classification system, the Atlantic Plain division comprises two provinc ...
.
Brickell Avenue Brickell Avenue is a north–south road that is part of U.S. Route 1, in Miami, Florida, just south of the Miami River. North of the Brickell Avenue Bridge, U.S. Route 1 is known as Biscayne Boulevard. Brickell Avenue is the main road throug ...
is the name given to the stretch of US 1 in
Miami, Florida Miami is a East Coast of the United States, coastal city in the U.S. state of Florida and the county seat of Miami-Dade County, Florida, Miami-Dade County in South Florida. It is the core of the Miami metropolitan area, which, with a populat ...
, just south of the Miami River until the
Rickenbacker Causeway The Rickenbacker Causeway is a causeway that connects Miami, Florida to the barrier islands of Virginia Key and Key Biscayne across Biscayne Bay. Background The Causeway is a toll road, owned and operated by Miami-Dade County. Automobile ...
. When the
New England road marking system , , , , , The New England road marking system was a regional system of marked numbered routes in the six-state region of New England in the United States. The routes were marked by a yellow rectangular sign with black numbers and border. M ...
was established in 1922, the Atlantic Highway within
New England New England is a region consisting of six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York (state), New York to the west and by the ...
was signed as Route 1, with a Route 24 continuing north to Madawaska;
New York New York most commonly refers to: * New York (state), a state in the northeastern United States * New York City, the most populous city in the United States, located in the state of New York New York may also refer to: Places United Kingdom * ...
extended the number to
New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
in 1924 with its own Route 1. Other states adopted their own systems of numbering; by 1926 all states but
Maryland Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It borders the states of Virginia to its south, West Virginia to its west, Pennsylvania to its north, and Delaware to its east ...
had signed the Atlantic Highway as various routes, usually changing numbers at the state line. In 1925, the
Joint Board on Interstate Highways The United States Numbered Highway System (often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. As the designation and numbering of these h ...
created a preliminary list of interstate routes to be marked by the states, including US 1 along the Atlantic. This highway began at
Fort Kent, Maine Fort Kent ( French: ''Fort-Kent'') is a town in Aroostook County, Maine, United States, situated at the confluence of the Fish River and the Saint John River, on the border with New Brunswick, Canada. The population was 4,067 in the 2020 cens ...
, and followed the existing Route 24 to Houlton, as well as Route 15 to Bangor, beyond which it generally followed the Atlantic Highway to Miami. In all states but
Georgia Georgia most commonly refers to: * Georgia (country), a country in the South Caucasus * Georgia (U.S. state), a state in the southeastern United States Georgia may also refer to: People and fictional characters * Georgia (name), a list of pe ...
that had numbered their
state highway A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either Route number, numbered or maintained by a sub-national state or province. A road numbered ...
s, Route 1 followed only one or two numbers across the state.The following routes were used, shown on the 1926 Rand McNally: *Florida: 4 *Georgia: 15, 17, and 24 *South Carolina: 12 and 50 *North Carolina: 50 *Virginia: 31 *Maryland: state highways were not numbered prior to the U.S. Highway system *Pennsylvania: 12 and 1 *New Jersey: 13 and 1 *New York: 1 *New England: 1 and 24, and a small piece of 160 beyond
Madawaska, Maine Madawaska is a town in Aroostook County, Maine, United States. The population was 3,867 at the 2020 census. Madawaska is opposite Edmundston, Madawaska County in New Brunswick, Canada, to which it is connected by the Edmundston–Madawaska B ...
(in the 1925 plan, part of 15 was also used)
The only significant deviation from the Atlantic Highway was between
Augusta, Georgia Augusta is a city on the central eastern border of the U.S. state of Georgia (U.S. state), Georgia. The city lies directly across the Savannah River from North Augusta, South Carolina at the head of its navigable portion. Augusta, the third mos ...
, and
Jacksonville, Florida Jacksonville ( ) is the most populous city proper in the U.S. state of Florida, located on the Atlantic coast of North Florida, northeastern Florida. It is the county seat of Duval County, Florida, Duval County, with which the City of Jacksonv ...
, where Route 1 was assigned to a more inland route, rather than following the Atlantic Highway via
Savannah A savanna or savannah is a mixed woodland-grassland (i.e. grassy woodland) biome and ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach th ...
. One of the many changes made to the system before the final numbering was adopted in 1926 involved US 1 in Maine. The 1925 plan had assigned US 1 to the shorter inland route (Route 15) between Houlton and Bangor, while US 2 followed the longer coastal route via Calais. In the system as adopted in 1926, US 2 instead took the inland route, while US 1 followed the coast, absorbing all of the former Route 24 and Route 1 in New England. Many local and regional relocations, often onto parallel superhighways, were made in the early days of US 1; this included the four-lane divided Route 25 in
New Jersey New Jersey is a U.S. state, state located in both the Mid-Atlantic States, Mid-Atlantic and Northeastern United States, Northeastern regions of the United States. Located at the geographic hub of the urban area, heavily urbanized Northeas ...
, completed in 1932 with the opening of the
Pulaski Skyway The Pulaski Skyway is a four-lane bridge-causeway in the northeastern part of the U.S. state of New Jersey, carrying a freeway designated U.S. Route 1/9 (US 1/9) for most of its length. The structure has a total length of . Its long ...
, and a bypass of Bangor involving the
Waldo–Hancock Bridge The Waldo–Hancock Bridge was the first long-span suspension bridge erected in Maine, as well as the first permanent bridge across the Penobscot River downstream from Bangor, Maine, Bangor. The name comes from connecting Waldo County, Maine, Wa ...
, opened in 1931. The
Overseas Highway The Overseas Highway is a highway carrying U.S. Route 1 (US 1) through the Florida Keys to Key West. Large parts of it were built on the former right-of-way of the Overseas Railroad, the Key West Extension of the Florida East Coast Ra ...
from Miami to
Key West Key West is an island in the Straits of Florida, at the southern end of the U.S. state of Florida. Together with all or parts of the separate islands of Dredgers Key, Fleming Key, Sunset Key, and the northern part of Stock Island, it con ...
was completed in 1938 and soon became a southern extension of US 1. With the construction of the
Interstate Highway System The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, or the Eisenhower Interstate System, is a network of controlled-access highways that forms part of the National Hi ...
in and after the 1950s, much of US 1 from Houlton to Miami was bypassed by
I-95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from U.S. Route 1 (US 1) in Miami, Florida, north to the Houlton–Woodstock Border Crossing between Maine and the ...
. Between Houlton and
Brunswick, Maine Brunswick is a New England town, town in Cumberland County, Maine, United States. Brunswick is included in the Lewiston-Auburn, Maine metropolitan New England city and town area. The population was 21,756 at the 2020 United States Census. Part o ...
, I-95 took a shorter inland route, much of it paralleling US 2 on the alignment proposed for US 1 in 1925. Between
Philadelphia Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
and
Baltimore Baltimore is the most populous city in the U.S. state of Maryland. With a population of 585,708 at the 2020 census and estimated at 568,271 in 2024, it is the 30th-most populous U.S. city. The Baltimore metropolitan area is the 20th-large ...
, I-95 leaves US 1 to pass through Wilmington. Most notably, I-95 and US 1 follow different corridors between
Petersburg, Virginia Petersburg is an independent city (United States), independent city in the Commonwealth (U.S. state), Commonwealth of Virginia in the United States. As of the 2020 United States census, 2020 census, the population was 33,458 with a majority bla ...
, and
Jacksonville, Florida Jacksonville ( ) is the most populous city proper in the U.S. state of Florida, located on the Atlantic coast of North Florida, northeastern Florida. It is the county seat of Duval County, Florida, Duval County, with which the City of Jacksonv ...
; while US 1 followed the Atlantic Seaboard Fall Line west of the coastal plain, I-95 takes a more direct route through the plain and its swamps. Although some of this part of US 1 was followed by other Interstates—
I-85 Interstate 85 (I-85) is a major Interstate Highway in the Southeastern United States. Its southern terminus is at an interchange with I-65 in Montgomery, Alabama; its northern terminus is an interchange with I-95 in Petersburg, Virginia, n ...
between Petersburg and
Henderson, North Carolina Henderson is a city in and the county seat of Vance County, North Carolina, United States. The population was 15,060 at the 2020 census. History The city was named in honor of former North Carolina Supreme Court Chief Justice Leonard Hender ...
, and
I-20 I20, I 20 or I-20 may refer to: * Interstate 20, a highway in the southeastern United States * I-20 (form), a United States government document that provides supporting information for the issuance of a student visa or change of status * I-20 (rap ...
between
Camden, South Carolina Camden is the largest city in and the county seat of Kershaw County, South Carolina, United States. The population was 7,764 in the 2020 census, and the 2022 population estimate is 8,213. It is part of the Columbia, South Carolina, Metropolita ...
, and
Augusta, Georgia Augusta is a city on the central eastern border of the U.S. state of Georgia (U.S. state), Georgia. The city lies directly across the Savannah River from North Augusta, South Carolina at the head of its navigable portion. Augusta, the third mos ...
—the rest remains an independent route with four lanes in many places. By the late 1970s, most of I-95 had been completed, replacing US 1 as the main corridor of the east coast and relegating most of it to local road status.


Major intersections

;Florida : Whitehead Street and Fleming Street in
Key West Key West is an island in the Straits of Florida, at the southern end of the U.S. state of Florida. Together with all or parts of the separate islands of Dredgers Key, Fleming Key, Sunset Key, and the northern part of Stock Island, it con ...
: in
Miami Miami is a East Coast of the United States, coastal city in the U.S. state of Florida and the county seat of Miami-Dade County, Florida, Miami-Dade County in South Florida. It is the core of the Miami metropolitan area, which, with a populat ...
: in Miami : in Miami : in Miami : in Miami : on the
Dania Beach Dania Beach (Dania until 1998) is a city in Broward County, Florida, United States. It is part of the Miami metropolitan area. As of the 2020 census, the city's population was 31,723. Dania Beach is the location of one of the largest jai ala ...
Fort Lauderdale, Florida Fort Lauderdale ( ) is a coastal city located in the U.S. state of Florida, north of Miami along the Atlantic Ocean. It is the county seat of and most populous city in Broward County, Florida, Broward County with a population of 182,760 at the ...
city line : in
West Palm Beach West Palm Beach is a city in and the county seat of Palm Beach County, Florida, United States. It is located immediately to the west of the adjacent Palm Beach, Florida, Palm Beach, which is situated on a barrier island across the Lake Worth Lag ...
: in
Melbourne Melbourne ( , ; Boonwurrung language, Boonwurrung/ or ) is the List of Australian capital cities, capital and List of cities in Australia by population, most populous city of the States and territories of Australia, Australian state of Victori ...
: in
Daytona Beach Daytona Beach is a coastal resort city in Volusia County, Florida, United States. Located on the East Coast of the United States, its population was 72,647 at the 2020 census. It is part of the Deltona–Daytona Beach–Ormond Beach metropo ...
: in
Ormond Beach Ormond Beach is a city in Volusia County, Florida, United States. The population was 43,080 at the 2020 census. Ormond Beach lies directly north of Daytona Beach and is a principal city of the Deltona–Daytona Beach–Ormond Beach, FL Metropo ...
: near
Palm Coast Palm Coast is a city in Flagler County, Florida, United States. As of the 2020 United States census, the population was 89,258, an increase of almost 200% since the 2000 count of 32,832. The population was estimated to be 98,411 as of July 1, ...
: in
Jacksonville Jacksonville ( ) is the most populous city proper in the U.S. state of Florida, located on the Atlantic coast of North Florida, northeastern Florida. It is the county seat of Duval County, Florida, Duval County, with which the City of Jacksonv ...
: in Jacksonville : in Jacksonville. The highways travel concurrently through the city. : in Jacksonville. The highways travel concurrently through the city. : in Jacksonville. The highways travel concurrently through the city. : in Jacksonville : in Jacksonville : in Jacksonville. The highways travel concurrently to north of
Alma, Georgia Bacon County Courthouse Alma is a city in Bacon County, Georgia, United States, and the county seat. As of the 2020 census, the city had a population of 3,433. Alma is known as Georgia's blueberry capital, and hosts a Blueberry Festival ea ...
. : in Jacksonville : in Callahan. The highways travel concurrently to Homeland, Georgia. ;Georgia : in Waycross. US 1/US 82/SR 520 travels concurrently to west of Deenwood. : in Waycross. The highways travel concurrently through the city. : in
Baxley Baxley is a city in Appling County, Georgia, United States. As of the 2020 census, the city had a population of 4,942. The city is the county seat of Appling County. History Baxley was first settled as a result of the Macon and Brunswick Rai ...
: in
Lyons Lyon (Franco-Provençal: ''Liyon'') is a city in France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of the French Alps, southeast of Paris, north of Marseille, southwest of Geneva, Switzerland, north ...
: in Oak Park : in
Swainsboro Swainsboro is a city in Emanuel County, Georgia, United States. As of the 2020 census, the city had a population of 7,425. The city is the county seat of Emanuel County. History In 1822, the Georgia state legislature established "Swainsborough" ...
: in Wadley : in
Louisville Louisville is the most populous city in the Commonwealth of Kentucky, sixth-most populous city in the Southeast, and the 27th-most-populous city in the United States. By land area, it is the country's 24th-largest city; however, by populatio ...
. US 1/US 221 travels concurrently to
Wrens Wrens are a family (biology), family, Troglodytidae, of small brown passerine birds. The family includes 96 species and is divided into 19 genus, genera. All species are restricted to the New World except for the Eurasian wren that is widely di ...
. : in Augusta : in Augusta. US 1/US 78 travels concurrently to
Aiken, South Carolina Aiken is the most populous city in, and the county seat of, Aiken County, South Carolina, United States. According to 2020 census, the population was 32,025, making it the 15th-most populous city in South Carolina, and one of the two largest ci ...
. US 1/US 278 travels concurrently to
Clearwater, South Carolina Clearwater is a census-designated place (CDP) in Aiken County, South Carolina. It lies near North Augusta, South Carolina, and is part of the Augusta, Georgia metropolitan area. Clearwater is located in historic Horse Creek Valley. The populatio ...
. US 1/SR 10 travels concurrently to the
South Carolina South Carolina ( ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders North Carolina to the north and northeast, the Atlantic Ocean to the southeast, and Georgia (U.S. state), Georg ...
state line. : in Augusta. US 1/US 25 travels concurrently to
North Augusta, South Carolina North Augusta is a city in Aiken and Edgefield counties in the U.S. state of South Carolina, on the north bank of the Savannah River. It lies directly across the river, and state border, from Augusta, Georgia. The population was 24,379 at the ...
. US 1/SR 121 travels concurrently to the South Carolina state line. ;South Carolina : in North Augusta : north-northeast of Aiken : in Batesburg-Leesville : in Lexington. The highways travel concurrently through the city. : east of Lexington : in Oak Grove : in West Columbia. The highways travel concurrently to Columbia. : in Columbia : in Columbia. The highways travel concurrently through the city. : in Dentsville : in Dentsville : in Lugoff. The highways travel concurrently to Camden. : in Camden : south-southwest of
Cheraw The Cheraw people, also known as the Saraw or Saura,Sebeok, Thomas Albert''Native Languages of the Americas, Volume 2.''Plenum Press, 1977: 251. were a Siouan-speaking tribe of Indigenous people of the Southeastern Woodlands,Swanton''The Indians ...
. The highways travel concurrently to Cheraw. ;North Carolina : west-southwest of East Rockingham : in Rockingham : in
Aberdeen Aberdeen ( ; ; ) is a port city in North East Scotland, and is the List of towns and cities in Scotland by population, third most populous Cities of Scotland, Scottish city. Historically, Aberdeen was within the historic county of Aberdeensh ...
. The highways travel concurrently through the city. : north-northeast of
Cameron Cameron may refer to: People * Clan Cameron, a Scottish clan * Cameron (given name), a given name (including a list of people with the name) * Cameron (surname), a surname (including a list of people with the name) ;Mononym * Cam'ron (born 19 ...
. The highways travel concurrently to Sanford. : in Sanford : in Cary. The highways travel concurrently to
Raleigh Raleigh ( ) is the List of capitals in the United States, capital city of the U.S. state of North Carolina. It is the List of municipalities in North Carolina, second-most populous city in the state (after Charlotte, North Carolina, Charlotte) ...
. : in
Raleigh Raleigh ( ) is the List of capitals in the United States, capital city of the U.S. state of North Carolina. It is the List of municipalities in North Carolina, second-most populous city in the state (after Charlotte, North Carolina, Charlotte) ...
. I-440/US 1 travels concurrently through the city. : in Raleigh : in Raleigh. US 1/US 401 travels concurrently through the city. : near Raleigh : northeast of
Henderson Henderson may refer to: People *Henderson (surname), description of the surname, and a list of people with the surname * Clan Henderson, a Scottish clan Places Argentina *Henderson, Buenos Aires Australia *Henderson, Western Australia Canada *H ...
. The highways travel concurrently to Norlina. : southwest of Middleburg : in Middleburg. US 1/US 401 travels concurrently to north-northwest of Wise. : north-northwest of Wise ;Virginia : southwest of South Hill. The highways travel concurrently to just southwest of the city. : in South Hill : south of
Alberta Alberta is a Provinces and territories of Canada, province in Canada. It is a part of Western Canada and is one of the three Canadian Prairies, prairie provinces. Alberta is bordered by British Columbia to its west, Saskatchewan to its east, t ...
: southwest of Petersburg. US 1/US 460 Bus. travels concurrently to Petersburg. : in Petersburg. The highways travel concurrently to
Richmond Richmond most often refers to: * Richmond, British Columbia, a city in Canada * Richmond, California, a city in the United States * Richmond, London, a town in the London Borough of Richmond upon Thames, England * Richmond, North Yorkshire, a town ...
. : in
Richmond Richmond most often refers to: * Richmond, British Columbia, a city in Canada * Richmond, California, a city in the United States * Richmond, London, a town in the London Borough of Richmond upon Thames, England * Richmond, North Yorkshire, a town ...
: in Richmond : in Richmond : in Richmond : in Lakeside : in Glen Allen : east-northeast of Spotsylvania. The highways travel concurrently to south of Fredericksburg. : south of Fredericksburg : in Lorton : in
Alexandria Alexandria ( ; ) is the List of cities and towns in Egypt#Largest cities, second largest city in Egypt and the List of coastal settlements of the Mediterranean Sea, largest city on the Mediterranean coast. It lies at the western edge of the Nile ...
: in
Arlington Arlington most often refers to: *Arlington, Virginia **Arlington National Cemetery, a United States military cemetery *Arlington, Texas Arlington may also refer to: Places Australia *Arlington light rail station, on the Inner West Light Rail in S ...
. The highways travel concurrently to
Washington, D.C. Washington, D.C., formally the District of Columbia and commonly known as Washington or D.C., is the capital city and federal district of the United States. The city is on the Potomac River, across from Virginia, and shares land borders with ...
;District of Columbia : in
Washington Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A ...
. The highways travel concurrently through part of the city. : in
Washington Washington most commonly refers to: * George Washington (1732–1799), the first president of the United States * Washington (state), a state in the Pacific Northwest of the United States * Washington, D.C., the capital of the United States ** A ...
. The two highways bump into each other at the intersection of 6th Street NW and
Rhode Island Avenue NW Rhode Island Avenue is a diagonal avenue in the Northwest and Northeast quadrants of Washington, D.C., and the capital's inner suburbs in Prince George's County, Maryland. Paralleling New York Avenue, Rhode Island Avenue was one of the origina ...
. ;Maryland : in College Park : in Elkridge : in
Arbutus ''Arbutus'' is a genus of 12 accepted speciesAct. Bot. Mex no.99 Pátzcuaro abr. 2012.''Arbutus bicolor''/ref> of flowering plants in the family Ericaceae, native to temperate regions of the Mediterranean, western Europe, the Canary Islands a ...
: in
Baltimore Baltimore is the most populous city in the U.S. state of Maryland. With a population of 585,708 at the 2020 census and estimated at 568,271 in 2024, it is the 30th-most populous U.S. city. The Baltimore metropolitan area is the 20th-large ...
: in Baltimore : in Overlea : in Conowingo ;Pennsylvania : in Concordville. US 1/US 322 travels concurrently through the community. : in Marple Township : on the Wynnewood
Philadelphia Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the Unit ...
city line : on the
Bala Cynwyd Bala Cynwyd ( ) is a community and census-designated place in Lower Merion Township, Pennsylvania, United States. It is located on the Philadelphia Main Line in Southeastern Pennsylvania and borders the western edge of Philadelphia at U.S. Rou ...
–Philadelphia city line. The highways travel concurrently into Philadelphia proper. : in Philadelphia. The highways travel concurrently through part of the city. : in
Bensalem Township Bensalem Township is a Township (Pennsylvania), township in Bucks County, Pennsylvania, United States. The township borders the Northeast Philadelphia, northeastern section of Philadelphia and includes the communities of Andalusia, Pennsylvania ...
: in Woodbourne : southwest of Morrisville ;New Jersey : in Lawrence Township : in North Brunswick : on the Edison
Metuchen Metuchen ( ) is a suburban borough in Middlesex County in the U.S. state of New Jersey. The borough is a commuter town of New York City, located in the heart of the Raritan Valley region within the New York Metropolitan area. The borough, alon ...
city line : in Woodbridge Township. The highways travel concurrently to
New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
. : in Linden : in Newark : in Newark : in Newark : in Newark : in Palisades Park. The highways travel concurrently to the
New Jersey New Jersey is a U.S. state, state located in both the Mid-Atlantic States, Mid-Atlantic and Northeastern United States, Northeastern regions of the United States. Located at the geographic hub of the urban area, heavily urbanized Northeas ...
-
New York New York most commonly refers to: * New York (state), a state in the northeastern United States * New York City, the most populous city in the United States, located in the state of New York New York may also refer to: Places United Kingdom * ...
state line at the
George Washington Bridge The George Washington Bridge is a double-decked suspension bridge spanning the Hudson River, connecting Fort Lee in Bergen County, New Jersey, with the Washington Heights neighborhood of Manhattan, New York City. It is named after George W ...
. : in Fort Lee : in Fort Lee. The highways travel concurrently to
The Bronx The Bronx ( ) is the northernmost of the five Boroughs of New York City, boroughs of New York City, coextensive with Bronx County, in the U.S. state of New York (state), New York. It shares a land border with Westchester County, New York, West ...
,
New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
. : at the New Jersey–New York state line ;New York : in
Manhattan Manhattan ( ) is the most densely populated and geographically smallest of the Boroughs of New York City, five boroughs of New York City. Coextensive with New York County, Manhattan is the County statistics of the United States#Smallest, larg ...
,
New York City New York, often called New York City (NYC), is the most populous city in the United States, located at the southern tip of New York State on one of the world's largest natural harbors. The city comprises five boroughs, each coextensive w ...
: in
The Bronx The Bronx ( ) is the northernmost of the five Boroughs of New York City, boroughs of New York City, coextensive with Bronx County, in the U.S. state of New York (state), New York. It shares a land border with Westchester County, New York, West ...
, New York City : in The Bronx, New York City : in
New Rochelle New Rochelle ( ; in ) is a city in Westchester County, New York, United States. It is a suburb of New York City, located approximately from Midtown Manhattan. In 2020, the city had a population of 79,726, making it the 7th-largest city and 2 ...
: in
Rye Rye (''Secale cereale'') is a grass grown extensively as a grain, a cover crop and a forage crop. It is grown principally in an area from Eastern and Northern Europe into Russia. It is much more tolerant of cold weather and poor soil than o ...
: on the Rye–
Port Chester Port Chester is a administrative divisions of New York#Village, village in the U.S. state of New York (state), New York and the largest part of the town of Rye (town), New York, Rye in Westchester County, New York, Westchester County by populati ...
city line ;Connecticut : in Stamford : in Darien : in Norwalk : in Fairfield : in Stratford : in
Milford Milford may refer to: Place names Canada * Milford (Annapolis), Nova Scotia * Milford (Halifax), Nova Scotia * Milford, Ontario England * Milford, Derbyshire * Milford, Devon, a place in Devon * Milford on Sea, Hampshire * Milford, Shro ...
: in
New Haven New Haven is a city of the U.S. state of Connecticut. It is located on New Haven Harbor on the northern shore of Long Island Sound. With a population of 135,081 as determined by the 2020 U.S. census, New Haven is the third largest city in Co ...
: in East Haven : in Branford : in Guilford : in
Old Saybrook Old Saybrook is a town in Middlesex County, Connecticut, United States. The town is part of the Lower Connecticut River Valley Planning Region. The population was 10,481 at the 2020 census. It contains the incorporated borough of Fenwick, an ...
. The highways travel concurrently to
Old Lyme Old Lyme is a coastal town in New London County, Connecticut, United States, bounded on the west by the Connecticut River, on the south by the Long Island Sound, on the east by the town of East Lyme, and on the north by the town of Lyme. The town ...
. : in
East Lyme East Lyme is a town in New London County, Connecticut, United States. The town is part of the Southeastern Connecticut Planning Region. The population was 18,693 at the 2020 census. The villages of Niantic and Flanders are located in the town. ...
: in New London. The highways travel concurrently to Groton. ;Rhode Island : in
Providence Providence often refers to: * Providentia, the divine personification of foresight in ancient Roman religion * Divine providence, divinely ordained events and outcomes in some religions * Providence, Rhode Island, the capital of Rhode Island in the ...
: in
Providence Providence often refers to: * Providentia, the divine personification of foresight in ancient Roman religion * Divine providence, divinely ordained events and outcomes in some religions * Providence, Rhode Island, the capital of Rhode Island in the ...
. The highways travel concurrently for one block. : in Pawtucket. The highways travel concurrently for less than . ;Massachusetts : in
Attleboro Attleboro is a city in Bristol County, Massachusetts, United States. It was once known as "The Jewelry Capital of the World" for its many jewelry manufacturers. According to the 2020 census, Attleboro had a population of 46,461. Attleboro is ...
: in North Attleborough : in Plainville : in
Sharon Sharon ( 'plain'), also spelled Saron, is a given name as well as a Hebrew name. In Anglosphere, English-speaking areas, Sharon is now predominantly a feminine given name, but historically it was also used as a masculine given name. In Israel, ...
: on the WestwoodDedham city line. The highways travel concurrently to
Canton Canton may refer to: Administrative divisions * Canton (administrative division), territorial/administrative division in some countries * Township (Canada), known as ''canton'' in Canadian French Arts and entertainment * Canton (band), an It ...
. : in
Canton Canton may refer to: Administrative divisions * Canton (administrative division), territorial/administrative division in some countries * Township (Canada), known as ''canton'' in Canadian French Arts and entertainment * Canton (band), an It ...
. I-93/US 1 travel concurrently to
Boston Boston is the capital and most populous city in the Commonwealth (U.S. state), Commonwealth of Massachusetts in the United States. The city serves as the cultural and Financial centre, financial center of New England, a region of the Northeas ...
. : in Boston : in Boston : in Peabody : in Peabody : in Danvers ;New Hampshire : in
Portsmouth Portsmouth ( ) is a port city status in the United Kingdom, city and unitary authority in Hampshire, England. Most of Portsmouth is located on Portsea Island, off the south coast of England in the Solent, making Portsmouth the only city in En ...
;Maine : in
Kittery Kittery is a town in York County, Maine, United States, and the oldest incorporated town in Maine. Home to the Portsmouth Naval Shipyard on Seavey's Island, Kittery includes Badger's Island, the seaside district of Kittery Point, and part of th ...
: in Saco : in South Portland. The highways travel concurrently to
Portland Portland most commonly refers to: *Portland, Oregon, the most populous city in the U.S. state of Oregon *Portland, Maine, the most populous city in the U.S. state of Maine *Isle of Portland, a tied island in the English Channel Portland may also r ...
. : in Portland : in Falmouth : in Yarmouth : in Yarmouth : in
Freeport Freeport, a variant of free port, may refer to: Arts, entertainment, and media * Freeport, name of several space stations in the video game ''Freelancer'' (2003) * Freeport, a fictional town in the video game ''SiN'' (1998) * ''Freeport: The Cit ...
: in Brunswick : in Brunswick : in Houlton. The highways travel concurrently through the city. : in Houlton : at the
Fort Kent–Clair Border Crossing The Fort Kent–Clair Border Crossing is at the Clair–Fort Kent Bridge that connects the town of Fort Kent, Maine Fort Kent ( French: ''Fort-Kent'') is a town in Aroostook County, Maine, United States, situated at the confluence of the F ...
in Fort Kent


Auxiliary routes

US 1 has six three-digit auxiliary routes. In numerical order, these are: * US 201, from
Brunswick, Maine Brunswick is a New England town, town in Cumberland County, Maine, United States. Brunswick is included in the Lewiston-Auburn, Maine metropolitan New England city and town area. The population was 21,756 at the 2020 United States Census. Part o ...
, to the
Armstrong–Jackman Border Crossing The Armstrong–Jackman Border Crossing is a border crossing on the Canada–United States border, located southeast of Saint-Théophile, Québec, and northwest of Jackman, Maine. The border crossing is the northern terminus of U.S. Route 201, wh ...
running south to north in east-central
Maine Maine ( ) is a U.S. state, state in the New England region of the United States, and the northeasternmost state in the Contiguous United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Provinces and ...
. * US 301, from
Sarasota, Florida Sarasota () is a city in and the county seat of Sarasota County, Florida, United States. It is located in Southwest Florida, the southern end of the Tampa Bay area, and north of Fort Myers, Florida, Fort Myers and Punta Gorda, Florida, Punta Gord ...
, to
Biddles Corner, Delaware Biddles Corner is a location in St. George's Hundred, New Castle County, Delaware, United States. Biddles Corner is at the intersection of U.S. Route 13 and Port Penn Road just east of the Biddles Corner toll plaza on the Delaware Route 1 toll ro ...
, along the East Coast. Most of the route closely parallels
I-95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from U.S. Route 1 (US 1) in Miami, Florida, north to the Houlton–Woodstock Border Crossing between Maine and the ...
and it has numerous intersections with its parent. * US 401 from
Sumter, South Carolina Sumter ( ) is a city in and the county seat of Sumter County, South Carolina, United States. The city makes up the Sumter, SC Metropolitan Statistical Area. Sumter County, along with Clarendon and Lee counties, form the core of Sumter–Lee ...
, to
Wise, North Carolina Wise is a small unincorporated community located on U.S. Route 1 in Warren County, North Carolina, United States. The nearest town is Norlina. The Warren County Training School was listed on the National Register of Historic Places The ...
, near the Virginia border. For most of the route, it parallels US 1 about to the east, though the two share pavement in
Raleigh, North Carolina Raleigh ( ) is the List of capitals in the United States, capital city of the U.S. state of North Carolina. It is the List of municipalities in North Carolina, second-most populous city in the state (after Charlotte, North Carolina, Charlotte) ...
. * US 501 from
Myrtle Beach, South Carolina Myrtle Beach is a resort city on the East Coast of the United States in Horry County, South Carolina. It is located in the center of a long and continuous stretch of beach known as the "Grand Strand” in the northeastern part of the state. Its ...
, to
Buena Vista, Virginia Buena Vista ( ) is an independent city located in the Blue Ridge Mountains region of Virginia in the United States. As of the 2020 census, the population was 6,641. The Bureau of Economic Analysis combines the independent cities of Buena Vist ...
. The highway runs southeast–northwest, meeting its parent in
Aberdeen Aberdeen ( ; ; ) is a port city in North East Scotland, and is the List of towns and cities in Scotland by population, third most populous Cities of Scotland, Scottish city. Historically, Aberdeen was within the historic county of Aberdeensh ...
and Sanford. * US 601 from
Tarboro, South Carolina Tarboro is an unincorporated community located in Jasper County, South Carolina South Carolina ( ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders North Carolina to the north ...
, to
Mount Airy, North Carolina Mount Airy is a city in Surry County, North Carolina, United States. As of the 2020 United States census, the city's population was 10,676. As of 2020, the city is the most populous municipality in Surry County. Mount Airy is located within t ...
. It runs mostly due south–north to the west of US 501, meeting the parent route in
Camden, South Carolina Camden is the largest city in and the county seat of Kershaw County, South Carolina, United States. The population was 7,764 in the 2020 census, and the 2022 population estimate is 8,213. It is part of the Columbia, South Carolina, Metropolita ...
. * US 701 from
Georgetown, South Carolina Georgetown is the third oldest city in the U.S. state of South Carolina and the county seat of Georgetown County, South Carolina, Georgetown County, in the South Carolina Lowcountry, Lowcountry. As of the 2010 United States Census, 2010 census ...
, to
Four Oaks, North Carolina Four Oaks is a town in Johnston County, North Carolina, Johnston County, North Carolina, United States. As of the 2010 United States Census, 2010 census it had a population of 1,921, up from 1,424 in 2000 United States census, 2000. History Four ...
. Furthest east of the US 1 auxiliary routes, it never meets its parent route, but does intersect US 501 in
Conway, South Carolina Conway is a city in and the county seat of Horry County, South Carolina, United States. The population was 24,849 at the 2020 census, up from 17,103 in the 2010 census, making it the 18th-most populous city in the state. The city is part of ...
, and terminates at US 301 at its northern end. US 101, despite its number, is not an auxiliary route, but rather considered a primary U.S. Route in its own right as major highway west of the former US 99 on the west coast of the U.S. (In the numbering scheme, its first "digit" is "10".)


Related state highways

*
Florida State Road A1A State Road A1A (SR A1A) is a major north–south Florida State Road consisting of seven separate sections running a total of along the Atlantic Ocean, from Key West at the southern tip of Florida, to Fernandina Beach, Florida, Fernandina ...
*
Massachusetts Route 1A Route 1A is a north–south state highway in Massachusetts, United States. It is an alternate route to U.S. 1 with three signed sections and two unsigned sections where the highway is concurrent with its parent. Due to the reconfiguration o ...
*
New Hampshire Route 1A New Hampshire Route 1A is an long state highway located in southeast New Hampshire. The route runs along the Atlantic coastline from the Massachusetts border north to Rye, then turns toward downtown Portsmouth. The southern terminus is at the Ma ...
*
New York State Route 1A New York State Route 1A (NY 1A) was a north–south state highway mostly located within New York City. It extended for just under from an intersection with NY 27 near the Holland Tunnel in Lower Manhattan to an interchange with ...
*
Rhode Island Route 1A Route 1A, largely signed as Scenic 1A, is a long numbered state highway located in Washington County, Rhode Island, United States. The route, which parallels U.S. Route 1 (US 1) for its entire length, has four distinct sections connected by U ...


In popular culture

* The route in
Richard Bachman Richard Bachman is a pen name (as well as a fictional character) of American horror fiction author Stephen King, adopted in 1977 for the novel '' Rage''. King hid the link between himself and Bachman, until allowing for his identification in 1985 ...
's horror novel, '' The Long Walk'' (1979), begins each year at the Maine–New Brunswick border at 9:00 on the morning of May 1 and travels down the
East Coast of the United States The East Coast of the United States, also known as the Eastern Seaboard, the Atlantic Coast, and the Atlantic Seaboard, is the region encompassing the coast, coastline where the Eastern United States meets the Atlantic Ocean; it has always pla ...
, along US 1, until the winner is determined. *The Atlantic Highway features prominently as both a location, and a character in
Seanan McGuire Seanan McGuire (pronounced SHAWN-in; born January 5, 1978) is an American author and filker. McGuire is known for her urban fantasy novels. She uses the pseudonym Mira Grant to write science fiction/ horror and the pseudonym A. Deborah Baker to w ...
's Ghost Roads series.


See also

*
U.S. Route 1A U.S. Route 1A (US 1A) is the name of several highways found in the United States. North Carolina Wake Forest–Youngsville U.S. Highway 1A (US 1A) is a alternate route of US 1 through the towns of Wake Forest and ...
* Special routes of U.S. Route 1


References


External links

*
Endpoints of U.S. Highway 1
{{Authority control Historic trails and roads in Dedham, Massachusetts Interstate 95 01