San Diego County, California
San Diego County is a county in California with an estimated population of 3,269,973 in 2023. 18 cities, towns and Census places in it are indexed here.
Largest places in San Diego County
San Diego 1,388,320Chula Vista 274,333Oceanside 170,020Escondido 148,122Carlsbad 113,495El Cajon 102,991Vista 98,344San Marcos 94,188Encinitas 60,841La Mesa 60,537Santee 59,478National City 55,236Poway 48,051Lemon Grove 27,569Imperial Beach 25,458Coronado 18,437Solana Beach 12,675Del Mar 3,867
About San Diego County
San Diego County is one of the counties of California. County governments in California handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.