South San Francisco, CA Area Codes
South San Francisco is served by area code 650. It is in California, San Mateo County. About 64,761 people live in its 2 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 650 |
| State / province | California |
| County | San Mateo County |
| Population | 64,761 |
| ZIP codes | 2 |
| Time zone | Pacific |
| Coordinates | 37.6549, -122.4130 |
What area code is South San Francisco in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 650 | California | 951,432 | — |
ZIP codes in the code footprint
Nearby towns and their area codes
San Bruno 650Millbrae 650Daly City 650Pacifica 650Burlingame 650San Francisco 415, 628San Mateo 650Alameda 341, 510
How to dial
Dial 650 + 7 digits for a number in South San Francisco, or +1 650 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.