South San Francisco, California
South San Francisco is a city in San Mateo County, California, with an estimated population of 63,123 in 2023. It sits at 37.6551, -122.3762 in the America/Los_Angeles time zone.
| Field | Value |
|---|---|
| Place name | South San Francisco |
| Type | city |
| State | California (CA) |
| County | San Mateo County |
| Population (2023 est.) | 63,123 |
| Land area | 9.20 sq mi (23.84 km²) |
| Coordinates | 37.6551, -122.3762 |
| Time zone | America/Los_Angeles |
| ZIP codes | 94080, 94083 |
| Telephone area codes | 415, 628, 650 |
ZIP codes and area codes for South San Francisco
South San Francisco covers 2 ZIP codes: 94080, 94083. Telephone area codes serving the area: 415, 628, 650. Browse all ZIP codes in California for the full list.
Where is South San Francisco?
South San Francisco is located in California, in San Mateo County. The coordinates above can be pasted directly into any map service. The nearest indexed places are listed below, which is a useful check when two states share a place name.
Nearby places
Brisbane 2 km · CASan Bruno 6 km · CAMillbrae 7 km · CAColma 7 km · CABurlingame 7 km · CADaly City 9 km · CAPacifica 10 km · CAHillsborough 11 km · CA
Other places in San Mateo County
San Mateo 101,327Daly City 99,833Redwood City 80,996San Bruno 41,327Pacifica 36,426Foster City 32,180Menlo Park 31,690Burlingame 29,910San Carlos 28,862East Palo Alto 28,216
Frequently asked questions
What county is South San Francisco, CA in?
South San Francisco is in San Mateo County, California.
What is the population of South San Francisco, CA?
The 2023 Census Bureau estimate is 63,123.
What time zone is South San Francisco in?
South San Francisco is in the America/Los_Angeles time zone.