San Mateo County, California ZIP codes
37 ZIP codes are in San Mateo County, plus 1 that cross in from neighboring counties. It's part of the San Francisco-Oakland-Fremont, CA metro area.
- ZIP codes
- 37
- Population in these ZIPs
- 713,109
- Avg. median income
- $166,200population-weighted
- Cities & towns
- 23
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in San Mateo County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 94002 | Belmont | 27,534 | $203,965 | $2,270,300 |
| 94005 | Brisbane | 4,692 | $156,169 | $1,147,100 |
| 94010 | Burlingame | 43,025 | $196,882 | $3,518,500 |
| 94011 PO Box | Burlingame | — | — | — |
| 94014 | Daly City | 45,315 | $122,966 | $1,003,900 |
| 94015 | Daly City | 64,091 | $127,056 | $1,169,100 |
| 94016 PO Box | Daly City | — | — | — |
| 94017 PO Box | Daly City | — | — | — |
| 94018 | El Granada | 3,834 | $230,053 | $1,484,700 |
| 94019 | Half Moon Bay | 14,419 | $153,781 | $1,585,000 |
| 94020 | La Honda | 1,694 | $250,001 | $1,022,700 |
| 94021 | Loma Mar | 321 | $250,001 | $1,073,100 |
| 94025 | Menlo Park | 40,721 | $216,601 | $2,934,800 |
| 94026 PO Box | Menlo Park | — | — | — |
| 94027 | Atherton | 7,002 | $250,001 | $8,728,600 |
| 94028 | Portola Valley | 6,531 | $250,001 | $4,331,200 |
| 94030 | Millbrae | 22,689 | $163,476 | $2,055,600 |
| 94037 | Montara | 2,917 | $233,826 | $1,471,700 |
| 94038 | Moss Beach | 2,683 | $99,680 | $1,486,500 |
| 94044 | Pacifica | 37,274 | $160,408 | $1,253,700 |
| 94060 | Pescadero | 1,465 | $127,973 | $1,161,600 |
| 94061 | Redwood City | 37,048 | $146,265 | $1,963,100 |
| 94062 | Redwood City | 25,759 | $233,262 | $2,711,300 |
| 94063 | Redwood City | 34,433 | $116,760 | $1,272,600 |
| 94064 PO Box | Redwood City | — | — | — |
| 94065 | Redwood City | 11,673 | $215,955 | $1,778,900 |
| 94066 | San Bruno | 42,728 | $141,272 | $1,289,400 |
| 94070 | San Carlos | 30,447 | $240,074 | $2,445,000 |
| 94074 | San Gregorio | 126 | $250,001 | — |
| 94080 | South San Francisco | 64,761 | $136,733 | $1,214,100 |
| 94083 PO Box | South San Francisco | — | — | — |
| 94128 | San Francisco | 0 | — | — |
| 94401 | San Mateo | 35,295 | $122,227 | $1,204,300 |
| 94402 | San Mateo | 25,475 | $172,522 | $2,455,200 |
| 94403 | San Mateo | 43,276 | $174,917 | $1,809,000 |
| 94404 | San Mateo | 35,881 | $192,332 | $1,702,000 |
| 94497 PO Box | San Mateo | — | — | — |
ZIP codes partly in San Mateo County
These ZIP codes are mostly in a neighboring county but cover part of San Mateo County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 94303 | Palo Alto | Santa Clara County | 46,879 | $151,609 | $2,061,600 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in San Mateo County
Nearby counties
Frequently asked questions
How many ZIP codes are in San Mateo County, California?
37 ZIP codes are mainly in San Mateo County, and 1 more ZIP codes from neighboring areas reach partly into it.
What cities are in San Mateo County?
ZIP codes in San Mateo County use the city names Atherton, Belmont, Brisbane, Burlingame, Daly City, El Granada, Half Moon Bay, La Honda, Loma Mar, Menlo Park, Millbrae and Montara and others.
What metro area is San Mateo County in?
San Mateo County is part of the San Francisco-Oakland-Fremont, CA metropolitan statistical area.