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 such 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.