San Mateo County, California
San Mateo County is a county in California with an estimated population of 726,353 in 2023. 20 cities, towns and Census places in it are indexed here.
Largest places in San Mateo County
San Mateo 101,327Daly City 99,833Redwood City 80,996South San Francisco 63,123San Bruno 41,327Pacifica 36,426Foster City 32,180Menlo Park 31,690Burlingame 29,910San Carlos 28,862East Palo Alto 28,216Belmont 26,622Millbrae 22,087Half Moon Bay 11,105Hillsborough 10,883Atherton 6,823Woodside 5,037Brisbane 4,577Portola Valley 4,204Colma 1,407
About San Mateo County
San Mateo 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.