San Mateo County Map, California
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San Mateo County, California
San Mateo County is the peninsula south of San Francisco. The county seat, Redwood City, is at the heart of the action, with a revitalized downtown and a rich history tied to the Gold Rush
The county is home to about 730,000 people. Many residents are working in tech giants like Meta (I still call it Facebook). SFO airport is also here, so it can get noisy in parts.
Highway 101 and Interstate 280 make it easy to get around, whether you’re commuting to tech hubs or escaping to the beach. There’s a decent chunk of open space and some good hiking.
| Category | Details |
|---|---|
| County Name | San Mateo County |
| County Seat | Redwood City |
| Population | Approximately 730,000 |
| Cities, Towns, and Communities | Redwood City, San Mateo, Daly City, Burlingame, South San Francisco, Menlo Park, Foster City, and others |
| Interstates and Highways | US 101, I-280, SR 92 |
| FIPS Code | 06-081 |
| Total Area (Land and Water) | 448 square miles (Land: 443 sq mi, Water: 5 sq mi) |
| Adjacent Counties (and Direction) | San Francisco County (North), Santa Clara County (Southeast), Santa Cruz County (South) |
| Time Zone | Pacific Standard Time (PST) |
| State | California |
| Coordinates | 37.4419° N, 122.4558° W |
| Etymology | Named after Saint Matthew |
| Major Landmarks | Half Moon Bay, Stanford University, Crystal Springs Reservoir, Filoli Historic House and Garden, San Mateo County History Museum |
| Website | San Mateo County Website |
San Mateo County Topographic Map
The peninsula landscape between the Pacific Ocean and San Francisco Bay appears on this detailed map. Zoom in to explore San Mateo County’s coastal bluffs, valleys, and north-south ridge of hills.
San Mateo County Satellite Map
Urban development lines the bay shore in this peninsula county. Western slopes facing the Pacific remain largely undeveloped, creating a clear contrast.
San Mateo County Blank Map
This blank map features San Mateo County’s long narrow outline on the San Francisco Peninsula. The western edge follows the Pacific coastline while the eastern boundary runs along San Francisco Bay.
Neighboring Counties
Here are the 3 neighboring counties of San Mateo County:
California County Map
Ever wonder how California’s 58 counties stack up? Our California county map lays them all out, from the coast to the deserts. Take a look and find the ones you know — and maybe a few you don’t.