South San Francisco
City in San Mateo County, California
South San Francisco is a city in San Mateo County, California, with 66,105 residents (2020 Census). It sits at 16 ft (5 m) above sea level. The nearest town is Brisbane, 1.5 miles N.
- 66,105residents (2020 Census)
- 16 ftelevation · 5 m
- 9.2 sq miland area · 23.8 km²
- 7,182 / sq mipopulation density
- 94080main ZIP code (2 in total)
About South San Francisco
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, and was estimated at 64,941 in 2025.
Text: Wikipedia · CC BY-SA 4.0
South San Francisco weather: 7-day forecast
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Source: National Weather Service (NOAA).
Live webcams in South San Francisco
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Living in South San Francisco
- Median household income
- $136,578
- Median home value
- $1,188,800
- Median rent
- $2,802/mo
- Median age
- 43.2
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Map of South San Francisco
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South San Francisco Street View
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Open in Google Maps ›South San Francisco, CA population
South San Francisco had 66,105 residents in the 2020 Census.
| 2020 Census | 66,105 |
|---|---|
| Density | 7,182 per sq mi (2,773 per km²) |
Source: U.S. Census Bureau, Decennial Census.
South San Francisco at a glance
| State | California (CA) |
|---|---|
| County | San Mateo County |
| Type | City |
| Population | 66,105 (2020) |
| Land area | 9.20 sq mi (23.8 km²) |
| Water area | 20.97 sq mi (54.31 km²) |
| Elevation | 16 ft (5 m) |
| Coordinates | 37.6551° N, 122.3762° W |
| ZIP codes | 94080, 94128 |
| Official website | ssf.net |
| Census code (GEOID) | 0673262 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near South San Francisco
- Brisbane1.5 mi N
- San Bruno3.6 mi SW
- Millbrae4.1 mi S
- Colma4.4 mi W
- Burlingame4.6 mi S
- Daly City5.8 mi NW
- Broadmoor6.3 mi NW
- Pacifica6.7 mi SW
- Hillsborough6.8 mi S
- San Mateo7.5 mi SE
- Alameda8.7 mi NE
- Baywood Park8.9 mi S
Straight-line distance between town centers.
Frequently asked questions about South San Francisco
What county is South San Francisco in?
South San Francisco is in San Mateo County, California.
What is the population of South San Francisco, CA?
66,105 people lived in South San Francisco at the 2020 Census.
What is the ZIP code of South San Francisco, CA?
The main ZIP code is 94080. Other ZIP codes: 94128.
What is the elevation of South San Francisco?
16 feet (5 m) above sea level.
What towns are near South San Francisco?
Brisbane (1.5 mi), San Bruno (3.6 mi), Millbrae (4.1 mi), Colma (4.4 mi), Burlingame (4.6 mi).
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