Southern California

Southern California
Southern California Images top to bottom, left to right: San Diego Skyline, Downtown Los Angeles, Village of La Jolla, Santa Monica Pier, Surfer at Black's Beach, Hollywood Sign, Disneyland, Hermosa Beach Pier
Red: The ten counties of Southern California.
Red: The ten counties of Southern California.
Country United States
State California
Counties Imperial
Kern
Los Angeles
Orange
Riverside
San Bernardino
San Diego
San Luis Obispo
Santa Barbara
Ventura
Largest city Los Angeles
Area
 (10-county)[1]
 • Total146,350 km2 (56,505 sq mi)
Population
 (2018)
24,122,237[2]

Southern California (colloquially and locally known as SoCal) is a geographic and cultural region that generally comprises California's southernmost counties, and is the second most populous urban agglomeration in the United States.[3][4] The region contains ten counties: Imperial, Los Angeles, Orange, Riverside, San Bernardino, San Diego, Santa Barbara, San Luis Obispo, Ventura, and Kern counties.

The Colorado Desert and the Colorado River are located on southern California's eastern border with Arizona, and the Mojave Desert is located north on California's Nevada border. Southern California's southern border is part of the Mexico–United States border.

Constituent metropolitan areas

Southern California includes the heavily built-up urban area which stretches along the Pacific coast from Ventura through Greater Los Angeles down to Greater San Diego (the contiguous urban area in fact continuing into Tijuana, Mexico), and inland to the Inland Empire and Coachella Valley (Palm Springs area). It encompasses eight metropolitan areas (MSAs), three of which together form the Greater Los Angeles Combined Statistical Area (CSA) with over 18 million people, the second-biggest CSA after the New York CSA. These three MSAs are: the Los Angeles metropolitan area (Los Angeles and Orange counties, with 13.3 million people), the Inland Empire ((Riverside and San Bernardino counties, including the Coachella Valley cities, with 4.3 million people), and the Oxnard–Thousand Oaks–Ventura metropolitan area (0.8 million people). In addition, Southern California contains the San Diego metropolitan area with 3.3 million people, Bakersfield metro area with 0.9 million, and the Santa Barbara, San Luis Obispo, and El Centro (Imperial County) metropolitan areas.

The Southern California Megaregion (or megalopolis) is larger still, extending east into Las Vegas, Nevada and south across the Mexican border into Tijuana.[5]

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