Southern California

Southern California (commonly shortened to SoCal) is a geographic and cultural region that generally comprises the southern portion of the U.S. state of California. It includes the Los Angeles metropolitan area, the second most populous urban agglomeration in the United States.[3][4] The region generally contains ten of California's 58 counties: Imperial, Kern, Los Angeles, Orange, Riverside, San Bernardino, San Diego, Santa Barbara, San Luis Obispo and Ventura counties.

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
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]
• Total	56,505 sq mi (146,350 km2)
Population  (2020)	23,762,904[2]

The Colorado Desert and the Colorado River are located on Southern California's eastern border with Arizona, and San Bernardino County shares a border with Nevada to the northeast. Southern California's southern border with Baja California is part of the Mexico–United States border.