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 region's urban municipal units (or well-defined statistical groupings of sudech units) according to the population. read more
National City - San Diego Co. Needles - San Bernardino Co. Newport Beach - Orange Co. Norco - Riverside Co. Norwalk - L.A. Co. Oceanside - San Diego Co. Ojai - Ventura Co. Ontario - San Bernardino Co. Orange - Orange Co. Oxnard - Ventura Co. Pala - San Diego Co. Palm Desert - Riverside Co. Palm Springs - Riverside Co. Palos Verdes Peninsula - L.A. Co. Paramount - L.A. Co. read more
Within southern California are two major cities, Los Angeles and San Diego, as well as three of the country's largest metropolitan areas. With a population of 4,042,000, Los Angeles is the most populous city in California and the second most populous in the United States. read more