San Mateo, California
San Mateo is a city in San Mateo County, California, with an estimated population of 101,327 in 2023. It sits at 37.5603, -122.3106 in the America/Los_Angeles time zone.
| Field | Value |
|---|---|
| Place name | San Mateo |
| Type | city |
| State | California (CA) |
| County | San Mateo County |
| Population (2023 est.) | 101,327 |
| Land area | 12.13 sq mi (31.43 km²) |
| Coordinates | 37.5603, -122.3106 |
| Time zone | America/Los_Angeles |
| ZIP codes | 94401, 94402, 94403, 94404, 94497 |
| Telephone area codes | 650 |
ZIP codes and area codes for San Mateo
San Mateo covers 5 ZIP codes: 94401, 94402, 94403, 94404, 94497. Telephone area codes serving the area: 650. Browse all ZIP codes in California for the full list.
Where is San Mateo?
San Mateo 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
Hillsborough 4 km · CAFoster City 5 km · CABelmont 5 km · CABurlingame 6 km · CASan Carlos 8 km · CAMillbrae 9 km · CARedwood City 10 km · CASouth San Francisco 12 km · CA
Other places in San Mateo County
Daly City 99,833Redwood City 80,996South San Francisco 63,123San 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 San Mateo, CA in?
San Mateo is in San Mateo County, California.
What is the population of San Mateo, CA?
The 2023 Census Bureau estimate is 101,327.
What time zone is San Mateo in?
San Mateo is in the America/Los_Angeles time zone.