Simi Valley (;
Chumash: ''Shimiyi'') is a city in
the valley of the same name in southeastern
Ventura County, California
Ventura County () is a County (United States), county located in Southern California, the southern part of the U.S. state of California. As of the 2020 United States census, 2020 census, the population was 843,843. The largest city is Oxnard, Ca ...
, United States. It is from
Downtown Los Angeles
Downtown Los Angeles (DTLA) is the central business district of the city of Los Angeles. It is part of the Central Los Angeles region and covers a area. As of 2020, it contains over 500,000 jobs and has a population of roughly 85,000 residents ...
, making it part of the
Greater Los Angeles Area
Greater Los Angeles is the most populous metropolitan area in the U.S. state of California, encompassing five counties in Southern California extending from Ventura County in the west to San Bernardino County and Riverside County in the east, ...
. Simi Valley borders
Thousand Oaks,
Moorpark, and the
Chatsworth neighborhood of
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
. As of the
2020 U.S. Census the population was 126,356,
up from 124,243 in 2010. The city of Simi Valley is surrounded by the
Santa Susana Mountains and the
Simi Hills
The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County, California, Ventura County and western Los Angeles County, California, Los Angeles County, of Southern California, United States.
The range runs ma ...
, west of the
San Fernando Valley
The San Fernando Valley, known locally as the Valley, is an urbanized valley in Los Angeles County, Los Angeles County, California. Situated to the north of the Los Angeles Basin, it comprises a large portion of Los Angeles, the Municipal corpo ...
, and northeast of the
Conejo Valley
The Conejo Valley (Spanish language, Spanish: ''Valle del Conejo'', meaning "Valley of the Rabbit") is a region spanning both southeastern Ventura County, California, Ventura County and northwestern Los Angeles County, California, Los Angeles C ...
. It grew as a
bedroom community
A commuter town is a populated area that is primarily residential rather than commercial or industrial. Routine travel from home to work and back is called commuting, which is where the term comes from. A commuter town may be called by many o ...
for the cities in the Los Angeles area and the San Fernando Valley when a freeway was built over the
Santa Susana Pass.
The
Ronald Reagan Presidential Library
The Ronald Reagan Presidential Library is the presidential library and burial site of Ronald Reagan, the 40th president of the United States (1981–1989), and his wife Nancy Reagan. Located in Simi Valley, California, the library is administere ...
, where the
former president was buried in 2004, is in Simi Valley.
History
Chumash/pre-colonial period

Simi Valley was once inhabited by the
Chumash people
The Chumash are a Native Americans in the United States, Native American people of the central and southern coastal regions of California, in portions of what is now Kern County, California, Kern, San Luis Obispo County, California, San Luis O ...
, who also settled much of the region from the
Salinas Valley
The Salinas Valley (Spanish language, Spanish: ''Valle de Salinas'') is one of the major valleys and most productive Agriculture, agricultural regions in California. It is located west of the San Joaquin Valley and south of San Francisco Bay and ...
to the
Santa Monica Mountains
The Santa Monica Mountains are a coastal mountain range in Southern California, next to the Pacific Ocean. It is part of the Transverse Ranges. The Santa Monica Mountains National Recreation Area encompasses this mountain range. Because of its p ...
, with their presence dating back thousands of years.
[Johnson, John R. 1997. ''Chumash Indians in Simi Valley in Simi Valley: A Journey Through Time''. Simi Valley, CA: Simi Valley Historical Society. Page 5. .] Around 5,000 years ago these tribes began processing
acorn
The acorn is the nut (fruit), nut of the oaks and their close relatives (genera ''Quercus'', ''Notholithocarpus'' and ''Lithocarpus'', in the family Fagaceae). It usually contains a seedling surrounded by two cotyledons (seedling leaves), en ...
s, and harvesting local marshland plants. Roughly 2,000 years later, as hunting and fishing techniques improved, the population increased significantly.
Shortly after this sharp increase a precious stone money system arose, increasing the viability of the region by offsetting fluctuations in available resources relating to climate changes. The native people who inhabited Simi Valley spoke an interior dialect of the
Chumash language, called
Ventureño.
Simi Valley's name is derived from the Chumash word Shimiyi, which refers to the stringy, thread-like clouds that typify the
region
In geography, regions, otherwise referred to as areas, zones, lands or territories, are portions of the Earth's surface that are broadly divided by physical characteristics (physical geography), human impact characteristics (human geography), and ...
. The name could have originated from the strands of mist from coastal fog that move into the
Oxnard Plain and wind their way up the
Calleguas Creek and the Arroyo Las Posas into Simi Valley. The origin of the name was preserved because of the work of the anthropologist
John P. Harrington, whose brother, Robert E. Harrington lived in Simi Valley. Robert Harrington later explained the name: ''"The word Simiji in Indian meant the little white wind clouds so often seen when the wind blows up here and Indians living on the coast, would never venture up here when those wind clouds were in the sky. The word Simiji was constructed by whites to the word Simi. There are other explanations about the name Simi, but this one was given to me by my brother who worked over 40 years for the
Smithsonian Institution
The Smithsonian Institution ( ), or simply the Smithsonian, is a group of museums, Education center, education and Research institute, research centers, created by the Federal government of the United States, U.S. government "for the increase a ...
and it seems most plausible to me"''.

Three Chumash settlements existed in Simi Valley during the Mission period in the late 18th and early 19th century: Shimiyi, Ta'apu (present-day
Tapo Canyon), and Kimishax or Quimicas (
Happy Camp Canyon west of
Moorpark College). There are many Chumash cave paintings in the area containing pictographs, including the
Burro Flats Painted Cave
The Burro Flats site is a painted cave site located near Burro Flats, in the Simi Hills of eastern Ventura County, California, United States. The Rock art of the Chumash people, Chumash-style "main panel" and the surrounding 25-acres were liste ...
in the Burro Flats area of the
Simi Hills
The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County, California, Ventura County and western Los Angeles County, California, Los Angeles County, of Southern California, United States.
The range runs ma ...
, located between the Simi Valley,
West Hills, and
Bell Canyon. The cave is located on private land owned by NASA. Other areas containing Chumash Native American pictographs in the Simi Hills are by Lake Manor and
Chatsworth.
The Rancho period
The first Europeans to visit Simi Valley were members of the Spanish
Portolá expedition (1769–1770), the first European land entry and exploration of the present-day state of
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
. The expedition traversed the valley on January 13–14, 1770, traveling from
Conejo Valley
The Conejo Valley (Spanish language, Spanish: ''Valle del Conejo'', meaning "Valley of the Rabbit") is a region spanning both southeastern Ventura County, California, Ventura County and northwestern Los Angeles County, California, Los Angeles C ...
to San Fernando Valley. They camped near a native village in the valley on the 14th.
Rancho Simí, also known as Rancho San José de Nuestra Señora de Altagracia y Simí,
was a
Spanish land grant in eastern
Ventura and western
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
counties granted in 1795 to Santiago Pico. After Santiago Pico's death in 1815, the Rancho was regranted to Santiago's sons Javier Pico and his two brothers, Patricio Pico and Miguel Pico, members of the prominent
Pico family of California.
Rancho Simí was the earliest Spanish colonial land grant within Ventura and
Santa Barbara Counties. The name derives from ''Shimiji,'' the name of the
Chumash Native American village here before the Spanish. It was the largest Spanish or Mexican land grant given in Ventura County, and one of the largest given in California. The
Simi Adobe-Strathearn House
Simi may refer to:
Places Greece
* Symi, also transliterated as Simi, a Greek island
*
California, United States
* Rancho Simi, a 1795 Spanish land grant
* Simi Valley
* Simi Hills, a mountain range
** Simi Peak
* Arroyo Simi, sometimes called S ...
, later the home of Robert P. Strathearn and family, served as the headquarters of the rancho.
José de la Guerra y Noriega, a Captain of the
Santa Barbara Presidio, who had begun to acquire large amounts of land in California to raise cattle, purchased Rancho Simí from the Pico family in 1842. After Jose de la Guerra death in 1858, the sons of Jose de la Guerra continued to operate the ranchos. The end of their prosperity came when several years of drought in the 1860s caused heavy losses. In 1865, the De la Guerras lost the ownership of El Rancho Simí excluding the Rancho Tapo. El Rancho Tapo was part of the original 113,009-acre Rancho Simí grant, but sometime around 1820–1830, the Rancho Tapo came to be thought of as a separate place within Rancho Simí.
The last of the De la Guerras to live in Simí Valley retreated to a 14,400-acre portion of the original rancho that was known as the Tapo Rancho. As late as February 1877, Juan De la Guerra was reported in county newspapers to be preparing to plant walnuts in the Tapo, which appears to be the final mention of their farming in relation to the original Simí grant.
The De la Guerra heirs tried every legal means, but by the 1880s, the Rancho Tapo also slipped from their ownership, as had the rest of the Rancho.
The Pioneer period
The Pioneer, or 'American,' period in Simi Valley began with the 96,000-acre purchase of El Rancho Simí by an eastern speculator named
Thomas A. Scott (1814–1882), who had made his money as an investor in the Pennsylvania Railroad during the Civil War. He was president of the
Pennsylvania Railroad
The Pennsylvania Railroad ( reporting mark PRR), legal name as the Pennsylvania Railroad Company, also known as the "Pennsy," was an American Class I railroad that was established in 1846 and headquartered in Philadelphia, Pennsylvania. At its ...
, and a partner in Philadelphia and California Petroleum Company. Scouts came to California to purchase lands, and thus Scott acquired El Rancho Simí (1865). His goal was to locate sites for oil, since the first oil well had been developed in Titusville, Pennsylvania just a few years earlier (1859). Within a short time, a 27-year-old man named Thomas Bard was sent west by Scott to manage the California properties. In the late 1880s, Simí Land and Water Company was formed to see to the selling of the huge rancho in ranch-size properties. Some American farmers had begun to lease land in the greater Rancho Simí for farming.
The earliest Anglo American ranchers showed up in Simí Valley in the late 1860s into the 1870s. Charles Emerson Hoar was given the title of "first American farmer" by early Simí historian Janet Scott Cameron. He had purchased the Hummingbird's Nest Ranch in the northeast corner of the Valley, and he leased land from the new owners of the Simí Rancho for raising sheep, already a proven way of making a living.
Much of the Simí Rancho land continued, as in Spanish days, to be used for raising sheep, cattle and grain. Wheat prospered longer here than in the rest of the county because it was free of a disease called "rust". Barley soon became the really successful grain crop.
Agriculture and ranching dominated the landscape through the 1950s. Citrus, walnuts and apricots were all grown in Simi Valley. In the early 1960s modern residential development began to take place.
Modern residential development
When Simí was an agricultural community, there were ranch houses that dotted the Valley. Four distinct communities also were located in the Valley (see 'Four Communities of Simi Valley' section below) prior to modern residential development. Though 1957 and 1958 brought the first 'tract' housing developments when the Dennis and Ayhens, Wright Ranch and Valley Vista tracts were built, the tremendous 'boom' in residential development took place beginning in 1960. The population which was 4,073 in 1950 doubled to 8,110 in 1960. By 1970 the population in Simi is reported by the census as 59,832.
Four communities prior to modern residential development
The pioneers arrived in the late 1860s – 1870s and ever since, this has been 'The Valley of Simi.' But, not all the communities in the valley were known as 'Simi.' There was the township of Simi (known as 'Simiopolis' for about a six-month period in 1888). In the valley there were also the communities of Santa Susana, Community Center and the Susana Knolls (known first as Mortimer Park) at different points in time.
Simi – In late 1887–1888, the incorporation of Simi Land and Water Company came about. El Rancho Simí was divided into ranches and farms by that corporation, and advertised for sale to midwestern and New England states. An investor group, the California Mutual Benefit Colony of Chicago, purchased land and laid out a townsite (located between First and Fifth Streets and from Los Angeles south to Ventura Ave), named it 'Simiopolis' and shipped twelve pre-cut, partially assembled houses from a lumberyard in Chicago via rail to Saticoy, then brought by wagon to Simi. These are known as 'colony houses.' This was the first 'neighborhood' in Simi. Stores sprung up on Los Angeles Ave, and the first Simi School was built in 1890 on Third and California Streets, and was used until Simi Elementary was built in the mid-1920s.
Santa Susana – In 1903 the
Santa Susana Train Depot was built, and the railroad was complete through Simi Valley, except for the tunnel, which was completed in 1904. A small business community grew up near the Santa Susana Train Depot, which was located on the north side of Los Angeles Ave, just east of Tapo Street. Over time residential developments followed and the town of Santa Susana was born. The Depot was moved in 1975 by Rancho Simi Recreation and Park District to its current location off of Kuehner.
Community Center – In 1922 L.F. Roussey laid out the small development which became known as Community Center. The driving force behind this development was the need for a High School in Simi Valley, as well as an elementary school in a more central location in the valley. The first graduating class from Simi High School was 1924, Simi Elementary was completed in 1926, The Methodist Church (which is now the Cultural Arts Center) was built in 1924. Numerous houses were built in Community Center in the 1920s and 1930s. The Simi Valley Woman's Club was located there as well (the building which served as the clubhouse for the Woman's Club was moved from the town of Simi). The Woman's Club club house was used by many individuals and organizations as a community meeting place.
Mortimer Park (the Susana knolls) – The area that is now the Knolls was a nearly that was purchased by Mr. and Mrs. Lewis T. Mortimer in the early 1920s. They planned on selling the lots for cabins, or vacation homes. The lots were very small (30 x 50 feet), and the Mortimers did not take the mountainous nature of the land into account, so quite often the lots were not buildable. Oftentimes several lots were needed to build structures. In 1944 the Garden Club, an active community organization in the area petitioned the county supervisors to change the name of Mortimer Park to the Susana Knolls.
''The first attempt to incorporate the towns of Simi, the area known as Community Center (93065) and Santa Susana (93063) in 1966 was unsuccessful. The second attempt in 1969 was successful, with residents voting 6,454 to 3,685 in favor of incorporation. 59% of eligible voters turned out for this vote. Susana Knolls is an unincorporated area of the Valley. Voters also voted whether to call this newly incorporated city 'Santa Susana' or 'Simi Valley.' The name Simi Valley garnered 2,000 more votes than Santa Susana.
''
Other items of historical interest
Santa Susana Field Laboratory

The
Santa Susana Field Laboratory
The Santa Susana Field Laboratory (SSFL), formerly known as Rocketdyne, is a complex of industrial research and development facilities located on a portion of Southern California in an unincorporated area of Ventura County in the Simi Hills betw ...
located in the
Simi Hills
The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County, California, Ventura County and western Los Angeles County, California, Los Angeles County, of Southern California, United States.
The range runs ma ...
, was used for the development of pioneering nuclear reactors and rocket engines beginning in 1948. The site was operated by
Atomics International and
Rocketdyne
Rocketdyne is an American rocket engine design and production company headquartered in Canoga Park, California, Canoga Park, in the western San Fernando Valley of suburban Los Angeles, California, Los Angeles, in southern California.
Rocketdyne ...
(originally both divisions of the
North American Aviation
North American Aviation (NAA) was a major American aerospace manufacturer that designed and built several notable aircraft and spacecraft. Its products included the T-6 Texan trainer, the P-51 Mustang fighter, the B-25 Mitchell bomber, the F- ...
company). The Rocketdyne division developed a variety of
liquid rocket engines. Rocket engine tests were frequently heard in Simi Valley. The Atomics International division of North American Aviation designed, built and operated the
Sodium Reactor Experiment
The Sodium Reactor Experiment was a pioneering nuclear power plant built by Atomics International at the Santa Susana Field Laboratory near Simi Valley, California, Simi Valley, California. The reactor operated from 1957 to 1964. On July 12, 1957 ...
, which in 1957 became the first United States commercial
nuclear reactor
A nuclear reactor is a device used to initiate and control a Nuclear fission, fission nuclear chain reaction. They are used for Nuclear power, commercial electricity, nuclear marine propulsion, marine propulsion, Weapons-grade plutonium, weapons ...
to supply electricity to a public power system, when it powered the city of
Moorpark (the government owned
BORAX-III reactor had previously powered
Arco, Idaho for around an hour in 1955). The last nuclear reactor operated at SSFL in 1980 and the last rocket engine was produced in 2006. The SSFL has been closed to development and testing. The site is undergoing investigation and removal of the nuclear facilities and cleanup of the soil and groundwater. The Boeing Company, the US DOE, and NASA are responsible for the cleanup.
In July 1959, the
Sodium Reactor Experiment
The Sodium Reactor Experiment was a pioneering nuclear power plant built by Atomics International at the Santa Susana Field Laboratory near Simi Valley, California, Simi Valley, California. The reactor operated from 1957 to 1964. On July 12, 1957 ...
suffered a serious incident when 13 of the reactor's 43 fuel elements partially melted resulting in the controlled release of radioactive gas to the atmosphere. The reactor was repaired and returned to operation in September 1960. The incident at the Sodium Reactor Experiment has been a source of controversy in the community. Technical analysis of the incident intended to support a lawsuit against the current landowner (
The Boeing Company
The Boeing Company, or simply Boeing (), is an American multinational corporation that designs, manufactures, and sells airplanes, rotorcraft, rockets, satellites, and missiles worldwide. The company also provides leasing and product support s ...
) asserts the incident caused the much greater release of radioactivity than the accident at
Three Mile Island. Boeing's technical response concludes the monitoring conducted at the time of the incident, shows only the allowable amount of radioactive gasses were released, and a Three Mile Island-scale release was not possible. The case was settled, it is reported, with a large payment by Boeing. In September 2009, The U.S. Department of Energy sponsored
public workshopwhere three nuclear reactor experts shared their independent analysis of the July 1959 incident.
The Santa Susana Field Laboratory also hosted the
Energy Technology Engineering Center. The center performed the design, development and testing of liquid metal reactor components for the
United States Department of Energy
The United States Department of Energy (DOE) is an executive department of the U.S. federal government that oversees U.S. national energy policy and energy production, the research and development of nuclear power, the military's nuclear w ...
from 1965 until 1998.
The Santa Susana Field Laboratory includes sites identified as historic by the
American Institute of Aeronautics and Astronautics
The American Institute of Aeronautics and Astronautics (AIAA) is a professional society for the field of aerospace engineering
Aerospace engineering is the primary field of engineering concerned with the development of aircraft and spacecra ...
and by the
American Nuclear Society. The
National Register of Historic Places
The National Register of Historic Places (NRHP) is the Federal government of the United States, United States federal government's official United States National Register of Historic Places listings, list of sites, buildings, structures, Hist ...
listed
Burro Flats Painted Cave
The Burro Flats site is a painted cave site located near Burro Flats, in the Simi Hills of eastern Ventura County, California, United States. The Rock art of the Chumash people, Chumash-style "main panel" and the surrounding 25-acres were liste ...
is located within the Santa Susana Field Laboratory, on a portion of the site owned by the
U.S. Government. The drawings within the cave have been termed "the best preserved Indian pictograph in Southern California".
Rodney King trial

Four officers of the
Los Angeles Police Department
The City of Los Angeles Police Department, commonly referred to as Los Angeles Police Department (LAPD), is the primary law enforcement agency of Los Angeles, California, United States. With 8,832 officers and 3,000 civilian staff, it is the th ...
(Stacey Koon, Laurence Powell, Timothy Wind, and Theodore Briseno) were accused of using unnecessary force in a March 3, 1991, beating of an African-American motorist
Rodney Glen King. The case known as the Rodney King Trials was based on footage recorded on home video by a bystander (George Holliday). The now-infamous video was broadcast nationally and globally and caused tremendous response because the beating was believed to be racially motivated. Due to the heavy media coverage of the arrest, Judge
Stanley Weisberg of the California Court of Appeals approved a
change of venue
A change of venue is the legal term for moving a trial (law), trial to a new location. In high-profile matters, a change of venue may occur to move a jury trial away from a location where a fair and impartial jury may not be possible due to wides ...
to neighboring Ventura County, using an available courtroom in Simi Valley for the state case against the officers.
On April 29, 1992, a Ventura County jury acquitted three of the four officers (Koon, Wind, and Briseno) and did not reach a verdict on one (Powell). Many believed that the unexpected outcome was a result of the racial and social make-up of the jury, which included ten white people, one Filipino person, and one Hispanic woman.
None were Simi Valley residents. Among the jury were three who had been security guards or in military service. The acquittal led to the
1992 Los Angeles riots
The 1992 Los Angeles riots were a series of riots and civil disturbances that occurred in Los Angeles County, California, United States, during April and May 1992. Unrest began in South Los Angeles, South Central Los Angeles on April 29, after ...
and mass protest around the country.
Geography

Simi Valley is a city located in the very southeast corner of
Ventura County
Ventura County () is a county located in the southern part of the U.S. state of California. As of the 2020 census, the population was 843,843. The largest city is Oxnard, and the county seat is the city of Ventura.
Ventura County comprises ...
, bordering the
San Fernando Valley
The San Fernando Valley, known locally as the Valley, is an urbanized valley in Los Angeles County, Los Angeles County, California. Situated to the north of the Los Angeles Basin, it comprises a large portion of Los Angeles, the Municipal corpo ...
in
Los Angeles County
Los Angeles County, officially the County of Los Angeles and sometimes abbreviated as LA County, is the most populous county in the United States, with 9,663,345 residents estimated in 2023. Its population is greater than that of 40 individua ...
, and is a part of the
Greater Los Angeles Area
Greater Los Angeles is the most populous metropolitan area in the U.S. state of California, encompassing five counties in Southern California extending from Ventura County in the west to San Bernardino County and Riverside County in the east, ...
. The city of Simi Valley basically consists of the
eponymous valley itself. The city of Simi Valley borders the
Santa Susana Mountains to the north, the
Simi Hills
The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County, California, Ventura County and western Los Angeles County, California, Los Angeles County, of Southern California, United States.
The range runs ma ...
to the east and south, and is adjacent to
Thousand Oaks to the southwest and
Moorpark to the west. Simi Valley is connected to the nearby San Fernando Valley by the
Santa Susana Pass in the extreme east of Simi Valley. Simi Valley is located at 34°16'16" North, 118°44'22" West (34.271078, −118.739428)
with an elevation of 700–1,000 ft (210–300 m) above sea level. The
syncline
In structural geology, a syncline is a fold with younger layers closer to the center of the structure, whereas an anticline is the inverse of a syncline. A synclinorium (plural synclinoriums or synclinoria) is a large syncline with superimposed ...
Simi Valley is located in the western part of the region called the
Transverse Ranges
The Transverse Ranges are a group of mountain ranges of Southern California, in the Pacific Coast Ranges physiographic region in North America. The Transverse Ranges begin at the southern end of the California Coast Ranges and lie within Santa Ba ...
. The valley is surrounded by the Santa Susana Mountains to the north and Simi Hills to the east and south. While the Santa Susana Mountains separate the valley from the
Los Padres National Forest
Los Padres National Forest is a United States national forest in Southern California, southern and central California. Administered by the United States Forest Service, Los Padres includes most of the mountainous land along the California coast ...
in the north, the Simi Hills separate it from
Conejo Valley
The Conejo Valley (Spanish language, Spanish: ''Valle del Conejo'', meaning "Valley of the Rabbit") is a region spanning both southeastern Ventura County, California, Ventura County and northwestern Los Angeles County, California, Los Angeles C ...
in the south. In the extreme east is
Rocky Peak, one of Santa Susana Mountains' highest peaks, which is a dividing line between
Ventura County
Ventura County () is a county located in the southern part of the U.S. state of California. As of the 2020 census, the population was 843,843. The largest city is Oxnard, and the county seat is the city of Ventura.
Ventura County comprises ...
to the west and
Los Angeles County
Los Angeles County, officially the County of Los Angeles and sometimes abbreviated as LA County, is the most populous county in the United States, with 9,663,345 residents estimated in 2023. Its population is greater than that of 40 individua ...
to the east. On the other side of the valley, in the extreme west side of Simi Valley is
Mount McCoy, which may be most known for its 12 ft. concrete cross that sits at its peak. The physiographical valley is a structural as well as a
topographic depression. The Simi Valley, just as neighboring
San Fernando Valley
The San Fernando Valley, known locally as the Valley, is an urbanized valley in Los Angeles County, Los Angeles County, California. Situated to the north of the Los Angeles Basin, it comprises a large portion of Los Angeles, the Municipal corpo ...
, owes its existence and shape to the faulting and folding of the rocks. It is essentially a structural valley and not wholly the work of erosion. It is drained by the
Calleguas Creek and also its principal tributary,
Conejo Creek. Both of these originate in the Santa Susana Mountains.
According to the United States Census Bureau, the city has a total area of 42.2 sq mi (109.4 km
2), comprising 41.5 sq mi (107.4 km
2) of land and 0.77 sq mi (2.0 km
2), or 1.81%, of it is water. Simi Valley is located northwest of the Los Angeles neighborhood of
Chatsworth and approximately from
Downtown Los Angeles
Downtown Los Angeles (DTLA) is the central business district of the city of Los Angeles. It is part of the Central Los Angeles region and covers a area. As of 2020, it contains over 500,000 jobs and has a population of roughly 85,000 residents ...
, south of
San Francisco
San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of ...
, north of
San Diego
San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...
, and south of
Sacramento
Sacramento ( or ; ; ) is the capital city of the U.S. state of California and the seat of Sacramento County. Located at the confluence of the Sacramento and American Rivers in Northern California's Sacramento Valley, Sacramento's 2020 p ...
. Commutes to Los Angeles are usually via the
State Route 118 (Ronald Reagan Freeway) or the Southern California
Metrolink commuter train, which makes several daily trips from Simi Valley. Simi Valley has a
mediterranean climate
A Mediterranean climate ( ), also called a dry summer climate, described by Köppen and Trewartha as ''Cs'', is a temperate climate type that occurs in the lower mid-latitudes (normally 30 to 44 north and south latitude). Such climates typic ...
. Temperate variations between day and night tend to be relatively big. The mean annual temperature is 64.1 degrees (), while the annual precipitation is . The precipitation remains less than one inch for seven months – April until October, – while the precipitation exceeds four inches in the two wettest months – January and February. While the mean temperature is at its lowest at 53.6 degrees () in December, the mean temperature in July and August exceeds 76 degrees ().
Simi Valley has been the victim of several natural disasters, including the flood of 1967, the storm of 1983, the 1988 lightning strike, as well as the
1994 Northridge earthquake
The 1994 Northridge earthquake affected Greater Los Angeles, California, on January 17, 1994, at 04:30:55 PST. The epicenter of the moment 6.7 () blind thrust earthquake was beneath the San Fernando Valley. Lasting approximately 8 seconds ...
and numerous wildfires.
[Havens, Patricia (1997). ''Simi Valley: A Journey Through Time''. Simi Valley Historical Society and Museum. Page 427. .]
Climate
Simi Valley has a warm and dry climate during summer when mean temperatures tend to be in the 70s. Wildfires do also occur here. The city's climate cools during winter when mean temperatures tend to be in the 50s. Because of its relatively low elevation, the
Simi Hills
The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County, California, Ventura County and western Los Angeles County, California, Los Angeles County, of Southern California, United States.
The range runs ma ...
typically experience rainy, mild winters. Snow is rare in the Simi Hills, even in the highest areas. The warmest month of the year is August with an average maximum temperature of , while the coldest month of the year is December with an average minimum temperature of . Temperature variations between night and day tend to be relatively large during summer, with a difference that can reach , and moderate during winter with an average difference of . The annual average precipitation in Simi Valley is 17.9 inches. Winter months tend to be wetter than summer months. The wettest month of the year is February with an average rainfall of 4.8 inches. Simi Valley gets 18 inches of rain per year, while the United States average is 37. Snowfall is 0 inches, while the U.S. average is 25 inches of snow per year. The number of days with measurable precipitation is 25. On average, there are 277 sunny days in Simi Valley per year. The July high is approximately . The January low is . The record low is (recorded in February 1989)
and the record high is (recorded in August 1985).
The prevailing wind direction is southwest, and the average wind speed is .
Natural hazards

An aspect of Simi Valley's location, situated beside the
Simi Hills
The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County, California, Ventura County and western Los Angeles County, California, Los Angeles County, of Southern California, United States.
The range runs ma ...
, is that it lies in a high-risk area for the wildfires that sweep through Southern California's mountain ranges every few years. Simi Valley is also at risk for earthquakes. The valley is surrounded by
faults; the closest ones being the Santa Rosa Fault to the Northwest, the Northridge Hills Fault to the Northeast, and the Chatsworth Fault to the South. In 1994, portions of Simi Valley received significant damage from the
Northridge earthquake
The 1994 Northridge earthquake affected Greater Los Angeles, California, on January 17, 1994, at 04:30:55 PST. The epicenter of the moment 6.7 () blind thrust earthquake was beneath the San Fernando Valley. Lasting approximately 8 seconds a ...
.
Wildfires
In autumn 2003, the
Simi Fire burned about 108,000 acres. A 2005 fire started on September 28 and burned an estimated . On September 29, the fire was estimated to be . More than 1,000 firefighters worked against the tricky combination of dry brush, low humidity and temperatures in the high 90s along the line that divides Los Angeles and Ventura counties. The fire was later brought under control and extinguished, without serious injury. Three homes were lost in outlying areas, but none within the city limits.
Demographics
2020
Before the 1960s, Simi Valley once boasted a strong community of Latino families, many of whom worked for white ranchers. However, the housing boom in the 1960s and 1970s attracted many white Americans leaving urban areas in
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
and the
San Fernando Valley
The San Fernando Valley, known locally as the Valley, is an urbanized valley in Los Angeles County, Los Angeles County, California. Situated to the north of the Los Angeles Basin, it comprises a large portion of Los Angeles, the Municipal corpo ...
. This turned Simi Valley into a predominately white city, but the percentage of those who identified as non-Hispanic white began to decrease from 86.2% in 1980 to 54% in 2020.
2010
The
2010 United States Census reported that Simi Valley had a population of 124,237. The population density was . The racial makeup of Simi Valley was 93,597 (75.3%) White, 1,739 (1.4%) African American, 761 (0.6%) Native American, 11,555 (9.3%) Asian, 178 (0.1%) Pacific Islander, 10,685 (8.6%) from other races, and 5,722 (4.6%) from two or more races. Hispanic or Latino of any race were 10,938 persons (23.3%); 16.2% of Simi Valley's population were
Mexican-American
Mexican Americans are Americans of full or partial Mexican descent. In 2022, Mexican Americans comprised 11.2% of the US population and 58.9% of all Hispanic and Latino Americans. In 2019, 71% of Mexican Americans were born in the United State ...
, 1.2%
Salvadoran, 0.9%
Guatemalan, 0.6%
Puerto Rican, 0.6%
Peruvian
Peruvians (''/peruanas'') are the citizens of Peru. What is now Peru has been inhabited for several millennia by cultures such as the Caral before the Spanish conquest in the 16th century. Peruvian population decreased from an estimated 5–9 ...
, 0.3%
Cuban, 0.3%
Argentine
Argentines, Argentinians or Argentineans are people from Argentina. This connection may be residential, legal, historical, or cultural. For most Argentines, several (or all) of these connections exist and are collectively the source of their ...
, 0.2%
Honduran, 0.2%
Nicaraguan
Nicaragua, officially the Republic of Nicaragua, is the geographically largest country in Central America, comprising . With a population of 7,142,529 as of 2024, it is the third-most populous country in Central America after Guatemala and ...
, and 0.2%
Ecuadorian
Ecuadorians () are people identified with the South American country of Ecuador. This connection may be residential, legal, historical or cultural. For most Ecuadorians, several (or all) of these connections exist and are collectively the source o ...
. Among Asian-Americans, 2.7% of Simi Valley's population were
Indian-Americans, 2.2%
Filipino, 1.2%
Chinese, 1.0%
Vietnamese, 0.7%
Korean, 0.5%
Japanese, 0.2%
Thai, 0.1%
Pakistani
Pakistanis (, ) are the citizens and nationals of the Islamic Republic of Pakistan. Pakistan is the fifth-most populous country, with a population of over 241.5 million, having the second-largest Muslim population as of 2023. As much as ...
. The majority of Simi Valley's population was made up of
Caucasian-Americans; the largest groups of whites were 16.7%
German-American
German Americans (, ) are Americans who have full or partial German ancestry.
According to the United States Census Bureau's figures from 2022, German Americans make up roughly 41 million people in the US, which is approximately 12% of the pop ...
, 11.3%
English, 8.5%
Italian
Italian(s) may refer to:
* Anything of, from, or related to the people of Italy over the centuries
** Italians, a Romance ethnic group related to or simply a citizen of the Italian Republic or Italian Kingdom
** Italian language, a Romance languag ...
, 3.4%
French, 3.1%
Polish, 2.3%
Norwegian, 2.3%
Swedish, 2.1%
Scottish and 2%
Dutch.
The Census reported that 123,577 people (99.5% of the population) lived in households, 482 (0.4%) lived in non-institutionalized group quarters, and 178 (0.1%) were institutionalized. There were 41,237 households, out of which 16,765 (40.7%) had children under the age of 18 living in them, 24,824 (60.2%) were
opposite-sex married couples living together, 4,659 (11.3%) had a female householder with no husband present, 2,214 (5.4%) had a male householder with no wife present. There were 1,975 (4.8%)
unmarried opposite-sex partnerships, and 291 (0.7%)
same-sex married couples or partnerships. 7,087 households (17.2%) were made up of individuals, and 3,013 (7.3%) had someone living alone who was 65 years of age or older. The average household size was 3.00. There were 31,697
families
Family (from ) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictability, structure, and safety as ...
(76.9% of all households); the average family size was 3.33.
The population was spread out, with 31,036 people (25.0%) under the age of 18, 11,088 people (8.9%) aged 18 to 24, 33,890 people (27.3%) aged 25 to 44, 35,046 people (28.2%) aged 45 to 64, and 13,177 people (10.6%) who were 65 years of age or older. The median age was 37.8 years. For every 100 females, there were 96.6 males. For every 100 females age 18 and over, there were 94.4 males. There were 42,506 housing units at an average density of , of which 30,560 (74.1%) were owner-occupied, and 10,677 (25.9%) were occupied by renters. The homeowner vacancy rate was 1.2%; the rental vacancy rate was 4.6%. 93,181 people (75.0% of the population) lived in owner-occupied housing units and 30,396 people (24.5%) lived in rental housing units.
2000
As of the
2000 United States census,
there were 111,351 people, 36,421 households, and 28,954 families
residing in the city. The
population density
Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geog ...
was 1,097.3/km
²
(2,841.9/mi
²). There were 37,272 housing units at an average density of
367.3/km
² (951.3/mi
²). The racial makeup of the city was
81.33%
White
White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...
, 1.26%
Black
Black is a color that results from the absence or complete absorption of visible light. It is an achromatic color, without chroma, like white and grey. It is often used symbolically or figuratively to represent darkness.Eva Heller, ''P ...
or
African American
African Americans, also known as Black Americans and formerly also called Afro-Americans, are an Race and ethnicity in the United States, American racial and ethnic group that consists of Americans who have total or partial ancestry from an ...
, 0.70%
Native American, 6.33%
Asian, 0.14%
Pacific Islander, 6.50% from
other races, and 3.74% from two or more races. 16.82% of the population were
Hispanic
The term Hispanic () are people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or broadly. In some contexts, Hispanic and Latino Americans, especially within the United States, "Hispanic" is used as an Ethnici ...
or
Latino of any race.
There were 36,421 households, out of which 42.5% had children under the age of 18 living with them, 63.9% were married couples living together, 10.7% had a female householder with no husband present, and 20.5% were non-families. 14.7% of all households were made up of individuals, and 4.9% had someone living alone who was 65 years of age or older. The average household size was 3.04 and the average family size was 3.33.
In the city, the population was spread out, with 28.4% under the age of 18, 7.9% from 18 to 24, 32.9% from 25 to 44, 23.1% from 45 to 64, and 7.6% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 97.9 males. For every 100 females age 18 and over, there were 95.6 males.
Income
According to a 2022 estimate, the median income for a household in the city was $112,144. 7.02% of the population and 7.4% of families were below the poverty line. In 2022, the median income for a household in Simi Valley has increased to $112,114 according to the U.S. Census Bureau. The median per capita income for the past 12 months (2021) was $51,324.
Sales tax was at 7.25% and income taxes were at 8.00%. The current unemployment rate was at 4.10% with a 0..46% recent job growth compared to the National Unemployment Rate of 5.20% and a 1.59% job growth. The median cost of homes in Simi Valley was $704,200 with mortgages at a median of $3,047.
Government
Simi Valley's government uses the "
council-manager" form of government. This means that the city council is composed of one mayor, elected every two years, and four council members elected for four-year terms. The city council appoints both the city attorney and
city manager
A city manager is an official appointed as the administrative manager of a city in the council–manager form of city government. Local officials serving in this position are referred to as the chief executive officer (CEO) or chief administ ...
, who heads the executive branch of the city government. The city manager appoints the various department heads for the city, and acts as the city clerk and city treasurer.
According to the 2008–2009 Comprehensive Annual Financial Report Fund Financial Statements, the city's various funds had $89.3 million in Revenues, $86.3 million in expenditures, $139.9 million in total assets, $26.1 million in total liabilities, and $158.5 million in investments.
The structure of the management and coordination of city services is:
State and Federal representation
In the
state legislature, Simi Valley is in , and in .
In the
United States House of Representatives
The United States House of Representatives is a chamber of the Bicameralism, bicameral United States Congress; it is the lower house, with the U.S. Senate being the upper house. Together, the House and Senate have the authority under Artic ...
, Simi Valley is in .
Politics

Simi Valley was at one time considered a
conservative
Conservatism is a cultural, social, and political philosophy and ideology that seeks to promote and preserve traditional institutions, customs, and values. The central tenets of conservatism may vary in relation to the culture and civiliza ...
stronghold politically, along with the neighboring city of
Thousand Oaks.
However, in recent elections, both cities have become
left-leaning
Centre-left politics is the range of left-wing political ideologies that lean closer to the political centre. Ideologies commonly associated with it include social democracy, social liberalism, progressivism, and green politics. Ideas commonl ...
.
As of the 2024 General Election results, all of Simi Valley’s elected representatives are from the
Democratic Party.
Simi Valley is located within the
25th congressional district, represented by
Democrat Raul Ruiz .
In November 2018,
Katie Hill unseated Republican Steve Knight and became the first Democratic woman to represent the district in the House of Representatives. Additionally, in 2022,
Alex Padilla
Alejandro Padilla (born March 22, 1973) is an American politician serving as the Seniority in the United States Senate, senior United States Senate, United States senator from California, a seat he has held since 2021. A member of the Democrati ...
became the first Latino elected to the Senate from California.
As of 2024, the town is represented by
Democrats Rep. Julia Brownley, Senator
Alex Padilla
Alejandro Padilla (born March 22, 1973) is an American politician serving as the Seniority in the United States Senate, senior United States Senate, United States senator from California, a seat he has held since 2021. A member of the Democrati ...
, and Senator
Adam Schiff
Adam Bennett Schiff (born June 22, 1960) is an American lawyer, author, and politician serving as the Seniority in the United States Senate, junior United States Senate, United States senator from California, a seat he has held since 2024. A m ...
.
Landmarks

Simi Valley is home to the
Ronald Reagan Presidential Library
The Ronald Reagan Presidential Library is the presidential library and burial site of Ronald Reagan, the 40th president of the United States (1981–1989), and his wife Nancy Reagan. Located in Simi Valley, California, the library is administere ...
, which has been visited by almost 400.000 people in 2014. After a
major state funeral in
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 ...
,
President Reagan was buried at the library in June 2004. The library adjoins a hangar in which the Boeing 707 SAM 27000 (Air Force One), which served presidents Nixon through G.W. Bush, is housed and available for tours. In the pavilion are various automobiles used to transport the president, as well as Marine One, the presidential helicopter.
The presidential library is frequently visited by conservative speakers and has been hosting numerous Republican primary debates, including the first debate in the
2008 presidential election, the
2012 presidential election, and the second primary debate for the
2016 presidential election.
Infrastructure

The Montalvo Cutoff, a railroad line opened by the
Southern Pacific Railroad
The Southern Pacific (or Espee from the railroad initials) was an American Railroad classes#Class I, Class I Rail transport, railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was oper ...
on March 20, 1904, to improve the alignment of its
Coast Line, runs east–west through the valley. In 1905, the longest train tunnel in the United States at that time was completed at the east end of Simi Valley.
Tunnel #26 is still being used linking Simi Valley and the
San Fernando Valley
The San Fernando Valley, known locally as the Valley, is an urbanized valley in Los Angeles County, Los Angeles County, California. Situated to the north of the Los Angeles Basin, it comprises a large portion of Los Angeles, the Municipal corpo ...
through the Santa Susana Mountains. The area was originally served by the
Santa Susana Depot which was also opened in 1904 as a combination passenger and freight depot built by the Southern Pacific and located on Los Angeles Avenue near Tapo Street. The station remained in use for the 60 years.
Simi Valley station is used by Amtrak and
Metrolink on the railroad's
Ventura County Line, after the line was purchased from Southern Pacific. The station is located at 5050 Los Angeles Avenue, west of Stearns Street.
Simi Valley Transit buses stop on Los Angeles Avenue in front of the station. There are connections from Simi Valley north to Santa Barbara and San Luis Obispo, and south to Los Angeles, Orange, and San Diego Counties.
These trains, as well as the buses, run 7 days a week and stop in Simi Valley several times each day. The Simi Valley station is unstaffed; tickets are available from automated ticket dispensers, conductors on board the trains, travel agents, by telephone, or from the
Amtrak
The National Railroad Passenger Corporation, Trade name, doing business as Amtrak (; ), is the national Passenger train, passenger railroad company of the United States. It operates intercity rail service in 46 of the 48 contiguous United Stat ...
and
Metrolink websites.
The
United States Postal Service
The United States Postal Service (USPS), also known as the Post Office, U.S. Mail, or simply the Postal Service, is an independent agencies of the United States government, independent agency of the executive branch of the federal governmen ...
operates the Simi Valley Post Office at 2511 Galena Avenue, the Kopy King Post Office at 2157 Tapo Street, and the Mount McCoy Post Office at 225 Simi Village Drive.
The city operates its own
police department
The police are a constituted body of people empowered by a state with the aim of enforcing the law and protecting the public order as well as the public itself. This commonly includes ensuring the safety, health, and possessions of citize ...
, and contracts with the
Ventura County Fire Department to provide fire protection services. There are six fire stations within Simi Valley, and the city built a state-of-the-art police station.
American Medical Response, in conjunction with Ventura County Fire Department, provide Emergency Medical Services at the
Advanced Life Support
Advanced Life Support (ALS) is a set of life-saving protocols and skills that extend basic life support to further support the circulation and provide an open airway and adequate ventilation (breathing).
Components
Key aspects of ALS level care ...
(ALS) level.
The city provides sanitation service to residences, businesses and other users.
Underground sewer lines collect
sewage
Sewage (or domestic sewage, domestic wastewater, municipal wastewater) is a type of wastewater that is produced by a community of people. It is typically transported through a sewerage, sewer system. Sewage consists of wastewater discharged fro ...
and
wastewater
Wastewater (or waste water) is water generated after the use of freshwater, raw water, drinking water or saline water in a variety of deliberate applications or processes. Another definition of wastewater is "Used water from any combination of do ...
which is treated at the city's
sewage plant.
Transportation
Simi Valley station is used by Amtrak and
Metrolink on the railroad's
Ventura County Line, after the line was purchased from the
Southern Pacific Transportation Company
The Southern Pacific (or Espee from the railroad initials) was an American Class I railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was operated by various companies under the names ...
. The station is located at 5050 Los Angeles Avenue, west of Stearns Street.
Simi Valley Transit buses stop on Los Angeles Avenue in front of the station. There are connections from Simi Valley north to Santa Barbara and San Luis Obispo, and south to Los Angeles, Orange, and San Diego Counties.
These trains, as well as the buses, run 7 days a week and stop in Simi Valley several times each day. The Simi Valley station is unstaffed; tickets are available from automated ticket dispensers, conductors on board the trains, travel agents, by telephone, or from the
Amtrak
The National Railroad Passenger Corporation, Trade name, doing business as Amtrak (; ), is the national Passenger train, passenger railroad company of the United States. It operates intercity rail service in 46 of the 48 contiguous United Stat ...
and
Metrolink websites.
Economy

Commuting into the city of Los Angeles for work is done by 27% of Simi Valley residents, with 20% working within Simi Valley.
In Simi Valley there are two main areas of industry – one in the eastern part of the city and the other one in the west. The primary industry is machinery and tools with 69 firms, and the secondary is the metal industry with 51 firms, both situated in the eastern and western industrial areas. Other industries such as lumber/wood products, food, plastic products, apparel/textiles and minerals, are also concentrated largely in these industrial areas. Miligard closed in 2025, laying off almost 400 workers.
The largest division of
Countrywide Home Loans, now Bank of America, Loan Administration, has been headquartered in the city since the mid-1990s. Operating from Madera Road in a building that once housed the apparel company
Bugle Boy, the company also has facilities on Tapo Canyon Road, and First Street. At its height, Countrywide had approximately 10,000 employees in the city.
The
Volkswagen
Volkswagen (VW; )English: , . is a German automotive industry, automobile manufacturer based in Wolfsburg, Lower Saxony, Germany. Established in 1937 by German Labour Front, The German Labour Front, it was revitalized into the global brand it ...
of America Design Center was once in an industrial complex across from the
Costco
Costco Wholesale Corporation is an American multinational corporation which operates a chain of membership-only big-box warehouse club retail stores. As of 2021, Costco is the third-largest retailer in the world, and as of August 2024, Cos ...
wholesale club near Madera and Cochran. The VW Design Center California or DCC, moved to
Santa Monica
Santa Monica (; Spanish language, Spanish: ''Santa Mónica'') is a city in Los Angeles County, California, Los Angeles County, situated along Santa Monica Bay on California's South Coast (California), South Coast. Santa Monica's 2020 United Sta ...
,
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
in the spring of 2006. Such notable automotive designers as
Jay Mays, now (2007) VP Design for Ford and
Freeman Thomas, co designer with Jay Mays of the original
Audi TT, once called the DCC in
Simi Valley their place of work. The original concept for the
New Beetle from Jay Mays, had its genesis there.
Top employers
According to the city's 2022-2023 Comprehensive Annual Financial Report, the top employers in the city are:
Education
Simi Valley is served by the
Simi Valley Unified School District (SVUSD).
Santa Susana High School has been named as a silver medal winner in U.S. News & World Report's "Top 500 Schools in America" for 2013 and 2014.
Simi Valley High School was ranked among
MSNBC
MSNBC is an American cable news channel owned by the NBCUniversal News Group division of NBCUniversal, a subsidiary of Comcast. Launched on July 15, 1996, and headquartered at 30 Rockefeller Plaza in Manhattan, the channel primarily broadcasts r ...
's Top 1,000 High Schools in the country.
Schools of higher education located nearby include
Moorpark College,
Cal State Northridge,
Cal State Channel Islands,
California Lutheran University
California Lutheran University (CLU, Cal Lutheran, or Cal Lu) is a private university in Thousand Oaks, California, United States. It was founded in 1959 and is affiliated with the Evangelical Lutheran Church in America, but is nonsectarian. It o ...
,
University of LaVerne,
University of California Santa Barbara (UCSB),
Ventura College,
Oxnard College,
Eternity Bible College,
Louis Brandeis Institute of Justice,
Pepperdine University
Pepperdine University () is a private university, private Christianity, Christian research university affiliated with the Churches of Christ, with its main campus in Los Angeles County, California, United States. Pepperdine's main campus consists ...
,
University of Southern California
The University of Southern California (USC, SC, or Southern Cal) is a Private university, private research university in Los Angeles, California, United States. Founded in 1880 by Robert M. Widney, it is the oldest private research university in ...
(USC),
Caltech
The California Institute of Technology (branded as Caltech) is a private university, private research university in Pasadena, California, United States. The university is responsible for many modern scientific advancements and is among a small g ...
,
Valley College,
American Jewish University
American Jewish University (AJU) is a Private university, private Jewish university in Los Angeles, California. It was formed in 2007 from the merger of the University of Judaism and Brandeis-Bardin Institute.
AJU's academic division includes ...
,
Loyola Marymount University
Loyola Marymount University (LMU) is a private Jesuit and Marymount research university in Los Angeles, California. LMU enrolls over 10,000 undergraduate and graduate students, making it the largest Catholic university on the west coast of the ...
,
University of La Verne, and
UCLA
The University of California, Los Angeles (UCLA) is a public land-grant research university in Los Angeles, California, United States. Its academic roots were established in 1881 as a normal school then known as the southern branch of the C ...
.
There are five high schools located in Simi Valley:
Royal High School,
Grace Brethren High School,
Santa Susana High School, Simi Valley High School, and
Apollo High School (a continuation school).
There are three middle schools located in Simi Valley: Hillside Middle School, Valley View Middle School, and Sinaloa Middle School.
Simi Valley also has an adult school (
Simi Adult School) and a
cosmetology
Cosmetology (from Greek , ''kosmētikos'', "beautifying"; and , ''-logia'') is the study and application of beauty treatment. Branches of specialty include hairstyling, skin care, cosmetics, manicures/ pedicures, non-permanent hair removal suc ...
school.
Libraries
The Simi Valley Public Library, operated by the City of Simi Valley, opened in July 2013. Services were formerly provided through the
Ventura County Library system. In its first year operating as a municipal library, it welcomed over 200,000 patrons.
Parks and recreation

Park facilities in Simi Valley are operated by the Rancho Simi Recreation and Park District. This included a total of fifty parks, where some are urban city-parks, while others are public open space or multi-purpose trail systems. The district has an inventory of of public owned land, including hundreds of acres of land in the
Simi Hills
The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County, California, Ventura County and western Los Angeles County, California, Los Angeles County, of Southern California, United States.
The range runs ma ...
. The purpose of these areas are to preserve the native landscape, as well as function as a
wildlife corridor
A wildlife corridor, also known as a habitat corridor, or green corridor, is a designated area habitat (ecology), that connects wildlife populations that have been separated by human activities or structures, such as development, roads, or land ...
that protects the natural habitat for wildlife and flora. The city also boasts six golf courses and the Kanan Ranch home development has nature
trails
A trail, also known as a path or track, is an unpaved lane or a small paved road (though it can also be a route along a navigable waterways) generally not intended for usage by motorized vehicles, usually passing through a natural area. Ho ...
for hikers, bicyclists and horse riders to enjoy. Two collegiate baseball teams: The Simi Valley Senators and the California Oaks of the
California Collegiate League in
Thousand Oaks, provide sports action to local fans.
To the east, Rocky Peak has a trail system for mountain biking, hiking and horseback riding. The trail is accessed just off the 118 freeway at Kuehner Road, Yosemite Road (about North) or Rocky Peak. Trailheads are: The Hummingbird Trail, Rocky Peak Fire Road or The Chumash Trail. These trails are not recommended for beginners, due to fairly steep grades and some technical sections on the trail.
To the southwest, numerous trails are accessible for mountain biking, hiking and horseback riding. The main access point for Wood Ranch Open Space is at the intersection of Wood Ranch Parkway and Long Canyon Parkway, but can also be accessed through nearby
Challenger Park or from trailheads in
Thousand Oaks. The trail system travels as far west as highway 23, as far east as the Rocketdyne facility and connects to the Lang Ranch trail system (
Westlake Village) and Chesebro trail system, which begins in
Agoura Hills
Agoura Hills () is a city situated in the Santa Monica Mountains region of Los Angeles County, California, United States. With a population of 20,330 as of the 2010 United States census, 2010 census, which decreased to 20,299 in 2020. Agoura H ...
.
Simi Peak
Simi Peak is the highest peak in the Simi Hills of Southern California, at .
Geography
Simi Peak is located in eastern Ventura County, California, near the cities of Simi Valley, California, Simi Valley to the north, and Thousand Oaks, Californ ...
(the highest peak in Simi Valley) is accessible from this trail system via China Flats in the Chesebro trail system. Ahmundson Ranch connects to this trail system, again via the Chesebro trail system. Bridlepath, a private trail system also connects to the main fire road. The west end of Simi Valley is also home to the 150-acre Tierra Rejada Park, which offers hiking trails to nearby
Moorpark.
To the west is the Iceoplex, an ice skating facility with Olympic and NHL sized ice rinks. The rink is home to the Ventura Mariners, an amateur club hockey team, the
Cal State Northridge Matadors club hockey program, the
Ventura County
Ventura County () is a county located in the southern part of the U.S. state of California. As of the 2020 census, the population was 843,843. The largest city is Oxnard, and the county seat is the city of Ventura.
Ventura County comprises ...
Poseidon of the LA Kings Hockey League, and the California Condors
special needs team. CSUN is located 20 minutes from the rink, and has dedicated rooms at the rink. The Poseidon are a district team whose players come from schools within
Malibu, Ventura County, and the west
San Fernando Valley
The San Fernando Valley, known locally as the Valley, is an urbanized valley in Los Angeles County, Los Angeles County, California. Situated to the north of the Los Angeles Basin, it comprises a large portion of Los Angeles, the Municipal corpo ...
.
List of public-owned parks in Simi Valley:
* Arroyo Park
*
Arroyo Simi Trail
* Arroyostow Park
* Atherwood Park
* Berylwood Park
* Big Sky Park
*
Challenger Park (area connects to
Thousand Oaks and
Westlake Village, with trail outlets in these cities as well)
* Chumash Park
* Citrus Grove Park
*
Corriganville Park
* Coyote Hills Park
* Darrah Park
* Foothill Park
* Frontier Park
* Houghton-Schreiber Park
* Indian Hills Open Space
* Knolls Park
*
Las Llajas Canyon (connects to
Chatsworth, Los Angeles
Chatsworth is a suburban neighborhood in Los Angeles, California, in the San Fernando Valley. The area around the town was home to Native Americans, who left caves containing rock art. Chatsworth was explored and colonized by the Spanish Empire ...
)
* Lincoln Park
* Marr Ranch Open Space
* Mayfair Park
*
Mount McCoy
*
Mount Sinai
Mount Sinai, also known as Jabal Musa (), is a mountain on the Sinai Peninsula of Egypt. It is one of several locations claimed to be the Mount Sinai (Bible), biblical Mount Sinai, the place where, according to the sacred scriptures of the thre ...
*
Oak Park
* Old Windmill Park
* Parker Ranch Open Space
* Rancho Madera Park
* Rancho Santa Susana Community Park
* Rancho Simi Community Park
* Rancho Tapo Community Park
*
Rocky Peak Park (connects to
Chatsworth, Los Angeles
Chatsworth is a suburban neighborhood in Los Angeles, California, in the San Fernando Valley. The area around the town was home to Native Americans, who left caves containing rock art. Chatsworth was explored and colonized by the Spanish Empire ...
)
*
Sage Ranch Park (adjacent to West Hills, Los Angeles)
* Sand Canyon Open Space
* Santa Susana Depot, Santa Susana Park & Historic Railroad Depot
* Sequoia Park
* Simi Hills Park
*
Simi Peak
Simi Peak is the highest peak in the Simi Hills of Southern California, at .
Geography
Simi Peak is located in eastern Ventura County, California, near the cities of Simi Valley, California, Simi Valley to the north, and Thousand Oaks, Californ ...
(highest point in Simi Valley)
* Sinaloa Park
* Stargaze Park
* Strathearn Historical Park and Museum
* Sycamore Canyon Park
* Sycamore Park
* Tapo Canyon Regional Park
* Tierra Rejada Park (connects to
Moorpark)
* Verde Park
* Vista Del Arroyo Park
* Willowbrook Park
* Wood Ranch Open Space (connects to
Thousand Oaks)
Wildlife

The
Simi Hills
The Simi Hills are a low rocky mountain range of the Transverse Ranges in eastern Ventura County, California, Ventura County and western Los Angeles County, California, Los Angeles County, of Southern California, United States.
The range runs ma ...
are the most critical
wildlife corridor
A wildlife corridor, also known as a habitat corridor, or green corridor, is a designated area habitat (ecology), that connects wildlife populations that have been separated by human activities or structures, such as development, roads, or land ...
linkage from the
Santa Monica Mountains
The Santa Monica Mountains are a coastal mountain range in Southern California, next to the Pacific Ocean. It is part of the Transverse Ranges. The Santa Monica Mountains National Recreation Area encompasses this mountain range. Because of its p ...
– to the
Santa Susana Mountains, and beyond to the Topatopa Mountains, San Gabriel Mountains, and other
Transverse Ranges
The Transverse Ranges are a group of mountain ranges of Southern California, in the Pacific Coast Ranges physiographic region in North America. The Transverse Ranges begin at the southern end of the California Coast Ranges and lie within Santa Ba ...
further east. The Simi's undeveloped native habitat provides routes that protect larger land wildlife of the Santa Monicas from genetic isolation. Large sections of the Simi Hills are protected by parks and open space preserves. Animals in the area include mammals such as the Virginia opossum, ornate shrew, broad-footed mole, mountain lion, mule deer, bobcat, Spotted skunk, spotted and striped skunk, California badger, southern California weasel, California raccoon, ringtail cat, American black bear, black bear, Botta's pocket gopher, desert cottontail, Coyote, valley coyote, gray fox, California vole, brush rabbit, California ground squirrel, California ground- and Grey squirrel, California grey squirrel, as well as several species of mice (California pocket mouse, western harvest mouse, brush mouse, deer mouse, and house mouse), rats (agile kangaroo rat, dusky-footed woodrat, black rat, roof rat, and brown rat) and bats (long-eared myotis, long-legged myotis, California myotis, small-footed myotis, western pipistrelle, Brazilian free-tailed bat, western mastiff bat, and Tejon myotis).
[Johnson, John R. 1997. ''Chumash Indians in Simi Valley in Simi Valley: A Journey Through Time''. Simi Valley, CA: Simi Valley Historical Society. Page 488. .] Some of the reptiles in the area include several species of snakes (Coachwhip (snake), coachwhip, southern Pacific rattlesnake, San Diego night snake, striped racer, black-headed snake, California black-headed snake, two-striped garter snake, Pituophis catenifer, San Diego gopher snake, California mountain kingsnake, coast mountain kingsnake, California kingsnake, coast patch-nosed snake, ringneck snake) and lizards (western fence lizard, California side blotched lizard, western skink, western whiptail, San Diego horned lizard, California horned lizard, San Diego alligator lizard, silvery legless lizard).
There are ten species of amphibians in Simi Valley: the California newt, Spea hammondii, western spadefoot, California toad, arroyo toad, California slender salamander, arboreal salamander, American bullfrog, California red-legged frog, California treefrog, and the Pacific treefrog.
[Johnson, John R. 1997. ''Chumash Indians in Simi Valley in Simi Valley: A Journey Through Time''. Simi Valley, CA: Simi Valley Historical Society. Pages 488–489. .]

Birds in Simi Valley include Anna's hummingbird, Canada goose, mallard, California quail, common egret, great blue heron, American bittern, American coot, killdeer, mourning dove, roadrunner, belted kingfisher, black phoebe, barn swallow, cliff swallow, common raven, crow, white-breasted nuthatch, cactus wren, mockingbird, American robin, robin, cedar waxwing, phainopepla, starling, least Bell's vireo, hooded oriole, western tanager, several species of blackbird (western meadowlark, Brewer's blackbird and brown-headed cowbird) and woodpeckers (Flicker (bird), common flicker, Nuttall's woodpecker, acorn woodpecker, and yellow-bellied sapsucker). Raptors include turkey vulture, white-tailed kite, American kestrel, poor-will and several species of hawks (Cooper's hawk, sharp-shinned hawk, marsh hawk, red-tailed hawk, red-shouldered hawk, and the common nighthawk) and owls (great horned owl, short-eared owl, long-eared owl, Barn-owl, barn owl, and the burrowing owl). Grosbeaks, finches and sparrows include black-headed grosbeak, house finch, American goldfinch, lesser goldfinch, California towhee, Savannah sparrow, sage sparrow, dark-eyed junco, white-crowned sparrow and the house sparrow.
In popular culture
Given its close proximity to Hollywood, Simi Valley has long been a popular entertainment industry location.
*Simi Valley and the surrounding hills have been the site of several television shows, including the long-running series ''Gunsmoke'' and ''M*A*S*H (TV series), M*A*S*H''.
* Established in 1937 and opened to the public in 1949, the Corriganville Movie Ranch, established by Ray "Crash" Corrigan, is located at the extreme Eastern end of Simi Valley and was the production site for many movies and television shows. Today the site is open to the public as Corriganville Park, just off the Santa Susana Pass Road.
* The popular 1970s television show ''Little House on the Prairie (TV series), Little House on the Prairie'' utilized an expansive collection of sets constructed throughout the hilly landscapes of Big Sky Ranch in the
Tapo Canyon hills north of Simi Valley and Santa Clarita, California, Santa Clarita, California. In addition to the Little House itself, the entire set for the town of Walnut Grove was built atop the hills. After finishing his work on the series, Michael Landon blew up the town (which became part of the final movie) but the Little House itself was left intact. In July 2004, the house was destroyed by a devastating California wildfire.
* The 1973 film ''The Doberman Gang'' was filmed entirely in Simi Valley, with the actual Bank of A. Levy as the backdrop for the robbery scenes.
* In 1983, Colleen McCullough's TV mini-series ''The Thorn Birds (miniseries), The Thorn Birds'' was brought to life in a remote corner of the Simi Valley. Australia presented too many hurdles for producers, the least of which was the restriction that only two American actors star in any movie filmed there; the rest had to be Australian. Location scouts went scouring, and Simi Valley, some of which strongly resembles parts of the Australian countryside, was chosen for the famous Cleary ranch and sheep station, Drogheda.
* In the 1984 film ''Bachelor Party (1984 film), Bachelor Party'' starring Tom Hanks, the MANN 6 Movie Theater, formerly located within the Sycamore Shopping Center, was used for the movie theater scene.
* The 1986 western comedy film ''Three Amigos'' was partially filmed here.
* The Brandeis-Bardin Institute's House of the Book is the location of the original Power Ranger Power Chamber.
* The 1982 hit horror film ''Poltergeist (1982 film), Poltergeist'' was filmed on Roxbury Street in Simi Valley. At the time, the homes were new and the land behind the street was free, allowing plenty of access for studio trucks. 4267 Roxbury Street (the Freeling house in the film) suffered substantial earthquake damage in the 1994 Northridge earthquake.
* For the 1992 movie Sneakers (1992 film), ''Sneakers'' with Robert Redford, the Gibraltar Savings building (later Countrywide at 400 Countrywide Way) was transformed to The Playtronics Toy company. The entire front lobby and hallways were redone for the movie and then returned to their original design. Some of the filmings were done from hills across from the building. Many scenes were shot at night with the permission of the residents, due to the lighting required.
* The delivery of the ransom money in ''The Big Lebowski'' shows a highway sign naming Simi Valley.
* The video for "Bullet with Butterfly Wings" by The Smashing Pumpkins was filmed in Simi Valley.
* In the 1995 film ''Species (film), Species'', the character, Dr. Laura Baker, is said to be from Simi Valley.
* In the 2001 comedy ''Joe Dirt'', the character found his long-lost parents in a trailer home park in Simi Valley (On another version of the movie, it was changed to Yucca Valley, California, Yucca Valley, California).
* The 1992 children's comedy ''Honey, I Blew Up the Kid'' was filmed in and around 676 Coldbrook Pl.
* In the 1992 film ''Forever Young (1992 film), Forever Young'' starring Mel Gibson the test airstrip scenes and the highway chase scene were filmed on the west end of Simi Valley bordering Moorpark.
* Most of the The Cat in the Hat (film), 2003 film adaptation of ''The Cat in the Hat'', starring Mike Myers (actor), Mike Myers and Dakota Fanning, was filmed in Simi Valley. The elaborate faux suburb where most of the film takes place was built on vacant land in a hilly area in West Simi Valley.
* Parts of Viva Rock Vegas, the sequel to the original Flintstones movie, was filmed at Rocky Peak.
* The video for "Hexagram (song), Hexagram," by Deftones, was filmed with fans watching the band play the song in an indoor skatepark in Simi Valley.
* The 2003 video game ''Black & Bruised'' has a character, Jumping Janet, whose hometown is Simi Valley.
* The skatepark in the 2005 movie ''Bad News Bears'' is in Simi Valley.
* In 2005, the PBS children's television series ''Postcards from Buster'' featured skateboard culture; interviewing local children and visiting the indoor skateboard park, Skatelab.
* The "Retail Rodeo" scenes from the Jennifer Aniston movie ''The Good Girl'' were filmed in the Ralph's shopping center on L.A. Ave. The set was constructed inside a vacant retail space.
* Nu-metal band Limp Bizkit filmed the music video for the single "Break Stuff" at Skatelab, a skate park in Simi Valley.
* The 2006 comedy ''The Benchwarmers'' was filmed on location in Knolls Park and Santa Susana Park, both located in Simi Valley.
* In March 2008, ''G.I. Joe: The Rise of Cobra'' started filming in the northern hills above Simi Valley, near the ''Little House on the Prairie'' site.
* The Patrick Swayze movie Three Wishes (film), ''Three Wishes'' used a baseball field in Simi Valley, near the Santa Susana Pass.
* In 2009, the rock band AFI (band), AFI filmed their music video for "Beautiful Thieves", the second single from their album ''Crash Love'', in a mansion in Simi Valley.
* The 2009 Hallmark Channel movie ''Always and Forever'' was filmed in various locations throughout Simi Valley and
Moorpark, California.
* In 2009 Gavin Rossdale filmed part of his music video "Forever May You Run" in an office building on 555 E. Easy Street in Simi Valley.
* The fictional "Atmospheric Research Institute" from the 2009 NBC TV miniseries The Storm (TV miniseries), ''The Storm'' was filmed in an office building on 555 E. Easy Street in Simi Valley.
* ''1000 Ways to Die'' uses the fictional "Simi Valley U" for most college-related clips like "Washed and Fried", "Beer Bashed", and "Who Fart-Dead"
* G4 (U.S. TV channel), G4's ''American Ninja Warrior'' competitions hold their "boot camp" in the mountains of Simi Valley.
* In 2011, ''WWE Tough Enough'' chose Hummingbird Ranch, located at the north-end of Kuehner Drive in Simi Valley.
* In 2013, Bunim/Murray Productions used one of the two Simi Valley mansions to film a spin-off for ''The Bad Girls Club''.
* Scenes in ''Criminal Minds'' were filmed in various places in Simi Valley, Including an intersection on Cochran St.
* The 2016 film ''Miss Stevens,'' starring actors such as Timothée Chalamet, Timotheé Chalamet and Lily Rabe, was filmed throughout the city, with specific locations such as The Grand Vista Hotel, Beeps Diner and the Mobil Gas Station off of Kuehner Drive.
* In an October 2018 episode of podcast ''Comedy Bang Bang'', Thomas Middleditch plays character Brody Broderson, who hails from the city.
* Jimmy Tatro's popular YouTube and Facebook television series ''The Real Bros of Simi Valley'' takes place in and around the city.
* In 2019, scenes from Once Upon a Time in Hollywood was filmed in Corriganville Movie Ranch.
* In June 2020, the Judge Cuts phase of ''America's Got Talent'' Season 15 were filmed at a currently-undisclosed outdoor venue in the city to comply with the Coronavirus disease 2019, COVID-2019 social restrictions; notably social distancing.
* In March 2021, Justin Bieber - Holy (Official Live Performance) was filmed at Corriganville Movie Ranch.
* In May 2021, The Weeknd - Save Your Tears (Live at The BRIT Awards 2021) was filmed at Corriganville Movie Ranch.
* The main village featured in the series ''Father Murphy'' was located at Big Sky Movie Ranch.
* The 2022 film ''Everything Everywhere All at Once'' is set in Simi Valley, with multiple scenes filmed in the city.
Notable people
*Dallas Braden, Major League Baseball player
*Mike Mo Capaldi, professional skateboarder, entrepreneur
*Francis Chan, pastor, author, speaker
*Jim Cherry, musician, singer, songwriter
*Jason Dolley, actor
*Aron Eisenberg, actor and filmmaker
*Jenna Leigh Green (born Jennifer Greenberg), actress
*Heather Halley, actress
*Hunter King, actress
*Joey King, actress
*Don MacLean (basketball), Don MacLean, UCLA Bruins, UCLA and National Basketball Association player
*Matt Magill, Major League Baseball player
*Merrell Twins, YouTubers, actresses and musicians
*Ray Navarro (1964–1990), artist, filmmaker, and HIV/AIDS activist
*Ben Orloff, Major League Baseball player
*Torey Pudwill, professional skateboarder, entrepreneur
*Scott Radinsky, Major League Baseball player, coach, and singer
*Scott Rice, Major League Baseball player
*Danielle Savre, actress and singer
*Robert Smith (bowler), Robert Smith, professional bowler
*Jeff Weaver, Major League Baseball player
*Jered Weaver, Major League Baseball player
*Matthew Wolff, professional golfer
*Shailene Woodley, actress
See also
*Santa Susana, CA
*
Burro Flats Painted Cave
The Burro Flats site is a painted cave site located near Burro Flats, in the Simi Hills of eastern Ventura County, California, United States. The Rock art of the Chumash people, Chumash-style "main panel" and the surrounding 25-acres were liste ...
*History of California before 1900
*List of Registered Historic Places in Ventura County, California, List of Registered Historic Places in Ventura County, California
*Ranchos of California
*
Santa Susana Pass
References
External links
*
City Of Simi Valley other websiteSimi Valley Historical Society
{{authority control
Simi Valley, California,
Cities in Ventura County, California
Incorporated cities and towns in California
1969 establishments in California
Populated places established in 1969