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South San Francisco, CA
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South San Francisco, California — From Wikipedia
South San Francisco, California | |
|---|---|
South San Francisco as viewed from Sweeney Ridge | |
| Nicknames: South City; The Industrial City; The Birthplace of Biotechnology | |
Interactive map of South San Francisco, California | |
| Coordinates: 37°39′18″N 122°22′34″W / 37.6551°N 122.3762°W | |
| Country | United States |
| State | California |
| County | San Mateo |
| Metro | San Francisco–Oakland–Hayward |
| Combined | San Jose–San Francisco–Oakland |
| Incorporated | September 19, 1908[2] |
| Government | |
| • Type | Mayor–council |
| • Mayor | Mark Addiego |
| • Vice Mayor | Mark Nagales |
| • City Manager | Laura Snideman |
| • Councilmembers | Buenaflor Nicolas James H. Coleman Eddie Flores |
| Area | |
• City | 30.174 sq mi (78.150 km2) |
| • Land | 9.204 sq mi (23.839 km2) |
| • Water | 20.970 sq mi (54.312 km2) 69.50% |
| Elevation | 16 ft (5 m) |
| Population | |
• City | 66,105 |
• Estimate (2025)[4] | 64,941 |
| • Rank | US: 615th CA: 138th |
| • Density | 7,182.0/sq mi (2,773.0/km2) |
| • Urban | 3,515,933 (US: 14th) |
| • Metro | 4,630,041 (US: 13rd) |
| • Combined | 9,140,485 (US: 5th) |
| Demonym | South San Franciscan |
| Time zone | UTC–8 (Pacific (PST)) |
| • Summer (DST) | UTC–7 (PDT) |
| ZIP Codes | 94080, 94083, 94099 |
| Area code | 650 |
| FIPS code | 06-73262 |
| GNIS feature ID | 2411942[7] |
| Website | ssfca.gov |
South San Francisco is a city in San Mateo County, California, United States, on the San Francisco Peninsula in the San Francisco Bay Area. The city is colloquially termed “South City“. The population was 66,105 as of the 2020 census,[5] and was estimated at 64,941 in 2025.[4]