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| Los Angeles County, California | |
|---|---|
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| Name | Los Angeles County |
| State | California |
| Founded | 1850 |
| County seat | Los Angeles |
| Largest city | Los Angeles |
| Area total sq mi | 4968 |
| Population | 10039107 |
Los Angeles County, California is a populous and diverse county in Southern California centered on the city of Los Angeles. It is a global hub for Hollywood-era entertainment, International trade via the Port of Los Angeles and Port of Long Beach, and sprawling metropolitan development across the San Fernando Valley, San Gabriel Valley, and South Bay. The county is home to numerous institutions such as the University of California, Los Angeles, University of Southern California, Los Angeles County Museum of Art, and Walt Disney Concert Hall.
Los Angeles County was established in 1850 during the formation of California and saw early influence from Spanish Empire missions like Mission San Gabriel Arcángel and Mission San Fernando Rey de España, as well as ranchos such as Rancho San Pedro and Rancho Cucamonga. The county developed through the California Gold Rush, the arrival of the Southern Pacific Railroad, and the land booms driven by figures like Phineas Banning and Henry Huntington. The rise of the film industry centered in Hollywood transformed local industry after pioneers including D.W. Griffith, Charlie Chaplin, and Mary Pickford established studios, while later conglomerates such as Metro-Goldwyn-Mayer and Warner Bros. consolidated the region's entertainment dominance. Twentieth-century growth was marked by aerospace firms like Northrop Corporation and Lockheed Corporation, wartime expansion during World War II, and postwar suburbanization promoted by developments like the Interstate Highway System and projects by William Mulholland and the Los Angeles Aqueduct. Civil rights and cultural shifts were shaped by events such as the Zoot Suit Riots of 1943, the Watts riots of 1965, and the 1992 Los Angeles riots, with landmark trials like the O. J. Simpson murder case and prosecutions led by figures from the Los Angeles County District Attorney's office. Legal and environmental milestones include litigation involving Santa Monica Mountains National Recreation Area and water disputes tied to the Owens Valley water dispute.
The county spans coastal plains, the Santa Monica Mountains, the San Gabriel Mountains, the Angeles National Forest, and desert-adjacent areas bordering Mojave Desert edges and San Bernardino County. Major waterways include the Los Angeles River, San Gabriel River, and reservoirs such as Castaic Lake and Pyramid Lake. Coastal cities like Long Beach and Malibu lie along the Pacific Ocean, while inland valleys include the Antelope Valley and the San Fernando Valley. The region experiences a Mediterranean climate moderated by the Pacific Ocean with microclimates influenced by phenomena like the Santa Ana winds and seasonal marine layer known locally as the June Gloom. Notable conservation areas include Griffith Park, Topanga State Park, and the Ballona Wetlands.
Los Angeles County is the most populous county in the United States and is known for ethnolinguistic diversity across communities such as Chinatown, Little Tokyo, Koreatown, and Little Ethiopia. Immigrant populations from Mexico, Guatemala, El Salvador, China, Philippines, Korea, Armenia, Iran, and Iranian Americans contribute to neighborhoods like East Los Angeles, Pico-Union, Westlake, Beverly Hills enclaves, and the San Gabriel Valley's Asian-American communities. Religious institutions range from Cathedral of Our Lady of the Angels to numerous Korean Presbyterian Churchs, Hindu temples like BAPS Mandir and Buddhist temples such as Hsi Lai Temple. Cultural festivals include the Rose Parade, Nisei Week, and LA Pride events.
County governance is administered by the five-member Los Angeles County Board of Supervisors and agencies such as the Los Angeles County Sheriff and Los Angeles County Department of Public Health. The county interacts with state entities like the California State Legislature, representatives in the United States House of Representatives from districts including those represented by figures tied to California's 34th congressional district and California's 39th congressional district, and courts such as the Los Angeles County Superior Court. Law enforcement collaborations have involved the Los Angeles Police Department, California Highway Patrol, and federal agencies like the Federal Bureau of Investigation. Political movements and civic activism in the county have been shaped by organizations like the United Farm Workers and events such as recalls, ballot measures, and ballot initiatives debated in contexts similar to statewide measures like Proposition 187 and Proposition 8.
The county's economy centers on industries including Entertainment industry, anchored by studios like Universal Studios, Paramount Pictures, and Sony Pictures Entertainment, and corporate headquarters such as Walt Disney Company and Live Nation Entertainment. The Port of Los Angeles and Port of Long Beach form the San Pedro Bay Port Complex, a major node in global trade connecting to markets via the Pacific Rim, supported by logistics firms, rail operators like BNSF Railway and Union Pacific Railroad, and the Long Beach Airport and Los Angeles International Airport. Technology and startups cluster in areas influenced by institutions like California Institute of Technology and University of California, Los Angeles, alongside aerospace firms including SpaceX and The Boeing Company supply chains. Tourism, hospitality, and conventions revolve around destinations such as Hollywood Walk of Fame, Staples Center (now Crypto.com Arena), Rodeo Drive, and Disneyland Resort in nearby Orange County. Financial services, healthcare systems like Kaiser Permanente and Cedars-Sinai Medical Center, and retail centers including The Grove contribute to employment and GDP.
The county's transportation infrastructure includes highways such as Interstate 5, U.S. Route 101, Interstate 10, and Interstate 405, as well as the Metrolink commuter rail, Los Angeles Metro Rail lines including the B Line and A Line, and bus services by Los Angeles County Metropolitan Transportation Authority. Major airports include Los Angeles International Airport, Bob Hope Airport, and Long Beach Airport, while seaports are served by the Port of Los Angeles and Port of Long Beach. Active transportation initiatives reference projects like the Expo Line conversion, the Second Street Tunnel in downtown, and regional planning by the Southern California Association of Governments.
Higher education institutions include University of California, Los Angeles, University of Southern California, California State University, Los Angeles, California Institute of Technology, and the University of California system. Community colleges such as Los Angeles City College and Pasadena City College serve local students, while independent schools and systems include Los Angeles Unified School District and parochial networks tied to Roman Catholic Archdiocese of Los Angeles. Research centers and libraries like the Huntington Library and Los Angeles Public Library support scholarship, and cultural partnerships link campuses to museums like Hammer Museum and performance venues such as the Walt Disney Concert Hall.
Cultural institutions encompass Los Angeles County Museum of Art, The Getty Center, The Broad, and Natural History Museum of Los Angeles County, with performing arts at Dolby Theatre, Hollywood Bowl, and Ahmanson Theatre. Sports franchises including Los Angeles Lakers, Los Angeles Dodgers, Los Angeles Rams, and Los Angeles Kings play at venues like Dodger Stadium and Crypto.com Arena. Recreation spans beaches such as Venice Beach, hiking in Runyon Canyon Park, surfing breaks at Malibu, and cycling along the Los Angeles River bike path and the Pacific Coast Highway. Annual events include the Academy Awards, the LA Marathon, and the Los Angeles County Fair, while markets like Grand Central Market and districts such as Olvera Street celebrate culinary and historic heritage.