South San Francisco, California
South San Francisco is a city in San Mateo County, California, United States, located on the San Francisco Peninsula in the San Francisco Bay Area. The city is colloquially known as "South City". The population was 66,105 at the 2020 census.
South San Francisco as viewed from a nearby ridge
An image of the South San Francisco hillside sign, taken from a zeppelin.
Headquarters of See's Candies on El Camino Real, South San Francisco
A sign placed at the entrance to the Biotech Area declares South San Francisco to be the "Birthplace of Biotechnology."
San Mateo County, California
San Mateo County, officially the County of San Mateo, is a county in the U.S. state of California. As of the 2020 census, the population was 764,442. Redwood City is the county seat, the third-most populated city in the county after Daly City and San Mateo.
Image: Mount Diablo from SF Bay Discovery Site 10 2 2011 4 24 09 PM
Image: San Mateo County government center
Image: Año Nuevo State Reserve
The Santa Cruz Mountains cross through San Mateo County. In comparison to the rest of the county, the area is quite rural and forested.