San Mateo County, California
30 ZIP codes · 448.62 sq mi of land · FIPS 06081
| Population | 742,340 |
|---|---|
| State | California |
| FIPS code | 06081 |
| Time zone | Pacific |
| Land area | 448.62 sq mi |
| Center (lat, long) | 37.4147, -122.3715 |
Area codes in this area
These are the area codes that most often serve San Mateo County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
San Francisco · 830,235San Mateo · 103,105Daly City · 101,964Redwood City · 82,447South San Francisco · 64,305San Bruno · 42,307Pacifica · 37,261Menlo Park · 32,727Burlingame · 30,525San Carlos · 29,614Belmont · 27,337Millbrae · 22,689BrisbaneEl GranadaHalf Moon BayLa HondaLoma MarAthertonPortola ValleyMontaraMoss BeachPescaderoSan Gregorio
ZIP codes in San Mateo County
94002 Belmont94005 Brisbane94010 Burlingame94014 Daly City94015 Daly City94018 El Granada94019 Half Moon Bay94020 La Honda94021 Loma Mar94025 Menlo Park94027 Atherton94028 Portola Valley94030 Millbrae94037 Montara94038 Moss Beach94044 Pacifica94060 Pescadero94061 Redwood City94062 Redwood City94063 Redwood City94065 Redwood City94066 San Bruno94070 San Carlos94074 San Gregorio94080 South San Francisco94128 San Francisco94401 San Mateo94402 San Mateo94403 San Mateo94404 San Mateo
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.