Southern California

Southern California
Images top to bottom, left to right: Hermosa Beach Pier, Disneyland Resort, Village of La Jolla, Santa Monica Pier, Surfer at Black's Beach, Hollywood Sign, Downtown Los Angeles, San Diego Skyline
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)[2]
• Total	23,762,904
GDP [3]
• Total	$1.95 trillion (2022)

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. Its densely populated coastal region includes Greater Los Angeles (the second-most populous urban agglomeration in the United States)^[4][5] and San Diego County (the second-most populous county in California). The region generally contains ten of California's 58 counties: Los Angeles, San Diego, Orange, Riverside, San Bernardino, Kern, Ventura, Santa Barbara, San Luis Obispo, and Imperial counties.

Although geographically smaller than Northern California in land area, Southern California has a higher population, with 23.76 million residents as of the 2020 census. The sparsely populated desert region of California occupies a significant portion (part of which has even been proposed to be split into a new county due to cultural, economic and geographic differences relative to the rest of the more urban region) of the area: the Colorado Desert, along with the Colorado River, is located on Southern California's eastern border with Arizona, and the Mojave Desert shares a border with Nevada to the northeast. Southern California's southern border with Baja California is part of the Mexico–United States border.