Buying a home in San Mateo County, California doesn't have to be difficult - Homes.com makes home buying a breeze. With 1,570 homes for sale in San Mateo County, California, you can search by price, bedrooms, neighborhood, and even by property type. Search San Mateo County homes for sale, foreclosures, MLS listings, and more. Make an informed decision with San Mateo County school data, neighborhood information, find San Mateo County real estate agents, and research home values in San Mateo County, CA. Homes.com has everything you need but the house keys.