This is a list of the 100 largest cities in Southern California by population. Official definitions of cities are defined according to the concept of city proper. The list ranks the regions urban municipal units (or well-defined statistical groupings of sudech units) according to population. Note that the populations listed are for the city proper and not for the urban area nor the metropolitan area. Population figures for Southern California cities are based on the reports of the 2010 United States Census.
1 – Los Angeles
2 - San Diego
3 - Long Beach
4 - Bakersfield
5 - Anaheim
6 - Santa Ana
7 - Riverside
8 - Chula Vista
9 - Irvine
10 - San Bernardino
11 - Oxnard
12 - Fontana
13 - Moreno Valley
14 - Huntington Beach
15 - Glendale
16 - Santa Clarita
17 - Garden Grove
18 - Oceanside
19 - Rancho Cucamonga