Los Angeles County, officially the County of Los Angeles, is a county in California. With a population of more than ten million people, it is the most populous county in the United States. Los Angeles County’s population is larger than that of 42 individual U.S. states. It has 88 incorporated cities and many unincorporated areas and at 4,083 square miles (10,570 km2) it is larger than the combined areas of the U.S. states of Delaware and Rhode Island. The county is home to more than one quarter of all California residents and is one of the most ethnically diverse counties in the U.S. Its county seat is the city of Los Angeles, which is the second most populous city in the nation and the most populous that lies entirely in a single county.
History and Geography
Los Angeles County is one of the original counties of California, created at the time of statehood in 1850. The county originally included parts of what are now Kern, San Berardino, Riverside and Orange counties. As the population increased, sections were split off to organize San Bernardino County in 1853, Kern County in 1866, and Orange County in 1889.
According to the U.S. Census Bureau, the county has an area of 4,751 square miles (12,310 km2), of which 4,058 square miles (10,510 km2) is land and 693 square miles (1,790 km2) (15%) is water. Los Angeles County borders 70 miles (110 km) of coast on the Pacific Ocean and encompasses mountain ranges, valleys, forests, islands, lakes, rivers, and desert. The Los Angeles River, Rio Hondo, the San Gabriel River and the Santa Clara River flow in Los Angeles County, while the primary mountain ranges are the Santa Monica Mountains and the San Gabriel Mountains. The western extent of the Mojave Desert begins in the Antelope Valley, in the northeastern part of the county.
Most of the population of Los Angeles County is located in the south and southwest, with major population centers in the Los Angeles Basin, San Fernando Valley and San Gabriel Valley. Other population centers are found in the Santa Clarita Valley, Pomona Valley, Crescenta Valley and Antelope Valley.
The county is divided west-to-east by the San Gabriel Mountains, which are part of the Transverse Ranges of southern California, and are contained mostly within the Angeles National Forest. Most of the county’s highest peaks are in the San Gabriel Mountains, including Mount San Antonio 10,068 feet (3,069 m)) at the Los Angeles-San Bernardino county lines, Mount Baden-Powell 9,399 feet (2,865 m), Mount Burnham 8,997 feet (2,742 m) and Mount Wilson 5,710 feet (1,740 m). Several lower mountains are in the northern, western, and southwestern parts of the county, including the San Emigdio Mountains, the southernmost part of Tehachapi Mountains and the Sierra Pelona Mountains.
Los Angeles County includes San Clemente Island and Santa Catalina Island, which are part of the Channel Islands archipelago off the Pacific Coast..
- Beverly Hills
- Los Feliz
- Marina Del Ray
- North Hollywood
- Santa Monica
- West Hollywood