Municipal annexation is a process by which a municipality expands its boundaries into nearby, usually adjacent, unincorporated areas. This has been a common response of cities to
urbanization
Urbanization (or urbanisation) refers to the population shift from rural to urban areas, the corresponding decrease in the proportion of people living in rural areas, and the ways in which societies adapt to this change. It is predominantly t ...
in neighboring areas. It may be done because the neighboring urban areas seek municipal services or because a city seeks control over its
suburbs or neighboring unincorporated areas.
In the
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...
, all local governments are considered "creatures of the state" according to
Dillon's Rule
John Forrest Dillon (December 25, 1831 – May 6, 1914) was an attorney in Iowa and New York, a justice of the Iowa Supreme Court and a United States circuit judge of the United States Circuit Court for the Eighth Circuit. He authored a highly ...
, which resulted from the work of
John Forrest Dillon on the law of
municipal corporation
A municipal corporation is the legal term for a local governing body, including (but not necessarily limited to) cities, counties, towns, townships, charter townships, villages, and boroughs. The term can also be used to describe municipally ow ...
s. Dillon's Rule implies, among other things, that the boundaries of any
jurisdiction
Jurisdiction (from Latin 'law' + 'declaration') is the legal term for the legal authority granted to a legal entity to enact justice. In federations like the United States, areas of jurisdiction apply to local, state, and federal levels.
Ju ...
falling under state government can be modified by state government action. For this reason, examples of municipal annexation are distinct from
annexations involving
sovereign state
A sovereign state or sovereign country, is a polity, political entity represented by one central government that has supreme legitimate authority over territory. International law defines sovereign states as having a permanent population, defin ...
s.
Shoestring annexation

A "shoestring annexation" is a term used for an annexation by a
city
A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be de ...
,
town
A town is a human settlement. Towns are generally larger than villages and smaller than city, cities, though the criteria to distinguish between them vary considerably in different parts of the world.
Origin and use
The word "town" shares ...
or other
municipality
A municipality is usually a single administrative division having municipal corporation, corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate.
The term ''municipality ...
in which it acquires new territory that is contiguous to the existing territory but is only connected to it by a thin strip of land. It is sometimes called a "flagpole annexation" because the territory resembles a flagpole, in which the connection is the "pole" and the annexed territory the "flag".
Reasons
In some states, municipalities are prohibited from annexing land not directly connected to their existing territory. A shoestring or flagpole annexation allows the municipality to do so.
Such annexations are sometimes used when a municipality seeks to acquire
unincorporated developed land, such as a newly built
subdivision separated from it by undeveloped open space. They may also be used when a municipality desires to annex a commercial or industrial area without taking over intervening residential areas, so as to collect tax revenues from the businesses or industry without having to provide services (such as
electricity
Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as describ ...
and
garbage collection) to residents. Such uses of the technique are often criticized and derided as a form of
gerrymandering
In representative democracies, gerrymandering (, originally ) is the political manipulation of electoral district boundaries with the intent to create undue advantage for a party, group, or socioeconomic class within the constituency. The m ...
, and have in fact been used for the purpose of manipulating vote distribution among election precincts and districts.
A related strategy is called strip annexation, which involves annexing a narrow strip that encloses a large block of unincorporated land. Strip annexation was widely used by the municipalities of the
Phoenix metropolitan area
The Phoenix Metropolitan Area – also the Valley of the Sun, the Salt River Valley, or Metro Phoenix (known by most locals simply as “the Valley”) – is the largest metropolitan area in the Southwestern United States, centered on the city ...
during the 1970s to preemptively gain control of large areas of land before other municipalities, without having to annex more than a thin strip surrounding a large so-called
county island
A county island is a small or large portion of an unincorporated area that is within the jurisdiction of a county, usually surrounded by adjacent areas that are incorporated into a municipality. On maps, these geopolitical anomalies will form ja ...
. The strip protected the county island from being annexed by other municipalities, thus giving the strip-annexing municipality the ability to slowly annex portions of the county island over time. One such annexation by
Chandler in 1974 spurred nearby
Gilbert Gilbert may refer to:
People and fictional characters
*Gilbert (given name), including a list of people and fictional characters
*Gilbert (surname), including a list of people
Places Australia
* Gilbert River (Queensland)
* Gilbert River (South A ...
to create the largest county island to date by annexing a strip no more than 200 feet wide that enclosed 51 square miles of unincorporated
Maricopa County
Maricopa County is in the south-central part of the U.S. state of Arizona. As of the 2020 census, the population was 4,420,568, making it the state's most populous county, and the fourth-most populous in the United States. It contains about ...
. The annexation was challenged in court and, although found legal, eventually led to legislation in 1980 outlawing strip annexation. Some municipalities rushed to annex before the law took effect, such as
Scottsdale, which annexed a 10 foot wide strip enclosing an 86 square mile county island.
Examples
Port of Los Angeles
The
Port of Los Angeles together with the
San Pedro,
Wilmington and
Harbor City neighborhoods of
Los Angeles
Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the wor ...
, are connected to the main part of the city by what is called locally the "
Shoestring Strip" between
Figueroa Street
Figueroa Street is a major north-south street in Los Angeles County, California, spanning from the Los Angeles neighborhood of Wilmington north to Eagle Rock. A short, unconnected continuation of Figueroa Street runs just south of Marengo Driv ...
and
Vermont Avenue
Vermont Avenue is one of the longest running north–south streets in City of Los Angeles and Los Angeles County, California. With a length of , is the third longest of the north–south thoroughfares in the region. For most of its length betwe ...
and between
Western
Western may refer to:
Places
*Western, Nebraska, a village in the US
* Western, New York, a town in the US
*Western Creek, Tasmania, a locality in Australia
*Western Junction, Tasmania, a locality in Australia
*Western world, countries that i ...
and
Normandie avenues to the south.
O'Hare Airport
O'Hare Airport
Chicago O'Hare International Airport , sometimes referred to as, Chicago O'Hare, or simply O'Hare, is the main international airport serving Chicago, Illinois, located on the city's Northwest Side, approximately northwest of the Loop business ...
is municipally connected to the city of
Chicago
(''City in a Garden''); I Will
, image_map =
, map_caption = Interactive Map of Chicago
, coordinates =
, coordinates_footnotes =
, subdivision_type = List of sovereign states, Count ...
via a narrow strip of land, approximately 200 feet wide, along Foster Avenue from the
Des Plaines river
The Des Plaines River () is a river that flows southward for U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , accessed May 13, 2011 through southern Wisconsin and northern Illinois''American Her ...
to the airport. This land was annexed in the 1950s to assure the airport was contiguous with the city to keep it under city control. The strip is bounded on the north by
Rosemont Rosemont may refer to:
* Rosemont (horse), an American Thoroughbred racehorse
* ''Rosemont'', a 2015 film Places
In Australia
* Rosemont (Woollahra), located in the Sydney suburb of Woollahra and listed on the NSW State Heritage Register
In Canada ...
and the south by
Schiller Park.
[http://egov.cityofchicago.org/webportal/COCWebPortal/COC_ATTACH/41st.pdf]
Allston-Brighton
The
Boston
Boston (), officially the City of Boston, is the capital city, state capital and List of municipalities in Massachusetts, most populous city of the Commonwealth (U.S. state), Commonwealth of Massachusetts, as well as the cultural and financ ...
neighborhoods of
Allston
Allston is an officially recognized neighborhood within the City of Boston, Massachusetts, United States. It was named after the American painter and poet Washington Allston. It comprises the land covered by the zip code 02134. For the most pa ...
and
Brighton were part of an independent town of Brighton before being annexed by Boston. They are presently connected to the remainder of the city by the
Boston University
Boston University (BU) is a private research university in Boston, Massachusetts. The university is nonsectarian, but has a historical affiliation with the United Methodist Church. It was founded in 1839 by Methodists with its original c ...
campus. At the time of the annexation,
Brookline extended to the
Charles River
The Charles River ( Massachusett: ''Quinobequin)'' (sometimes called the River Charles or simply the Charles) is an river in eastern Massachusetts. It flows northeast from Hopkinton to Boston along a highly meandering route, that doubles bac ...
and separated Boston and Brighton. As a result, a shoestring annexation was obtained by Boston from Brookline when Brighton joined Boston. This was made necessary by
Brookline's refusal to join Boston a year before Brighton's annexation.
South San Diego
South San Diego, located next to the
Mexico–United States border
The Mexico–United States border ( es, frontera Estados Unidos–México) is an international border separating Mexico and the United States, extending from the Pacific Ocean in the west to the Gulf of Mexico in the east. The border trav ...
, is physically separated from the rest of
San Diego
San Diego ( , ; ) is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States ...
by the cities of
National City and
Chula Vista. A narrow strip of land at the bottom of
San Diego Bay
San Diego Bay is a natural harbor and deepwater port located in San Diego County, California near the U.S.–Mexico border. The bay, which is long and wide, is the third largest of the three large, protected natural bays on California's of ...
connects these southern neighborhoods with the rest of the city.
West Grove
West Grove, the western portion of the city of
Garden Grove in
Orange County, California
Orange County is located in the Los Angeles metropolitan area in Southern California. As of the 2020 census, the population was 3,186,989, making it the third-most-populous county in California, the sixth-most-populous in the United States, ...
, is separated from the rest of the city by the city of
Stanton Stanton may refer to:
Places United Kingdom
;Populated places
* Stanton, Derbyshire, near Swadlincote
* Stanton, Gloucestershire
* Stanton, Northumberland
* Stanton, Staffordshire
* Stanton, Suffolk
* New Stanton, Derbyshire
* Stanton by Bri ...
. The two portions of the city are connected to the rest of the city by a narrow strip of land along Garden Grove Boulevard from Beach Boulevard to Hoover Street.
See also
*
Municipal annexation
Municipal annexation is the legal process by which a city or other municipality acquires land as its jurisdictional territory (as opposed to simply owning the land the way individuals do). In the United States and Canada, it refers to the incorpor ...
*
Amalgamation (politics)
*
Enclave and exclave
An enclave is a territory (or a small territory apart of a larger one) that is entirely surrounded by the territory of one other state or entity. Enclaves may also exist within territorial waters. ''Enclave'' is sometimes used improperly to deno ...
*
Boroughitis
Boroughitis (also borough fever or borough mania) was the creation in the 1890s, usually by referendum, of large numbers of small boroughs in the U.S. state of New Jersey, particularly in Bergen County. Attempts by the New Jersey Legislature t ...
*
Paper township
References
Notes
Further reading
*{{cite crabgrass
*Staff
MRSC PUBLICATIONS › Annexation Handbook PublicationMunicipal Research & Services Center of Washington
Annexation
Political geography
Metropolitan areas of the United States
Urban planning
Local government in the United States