City facts
San Mateo zip codes
3 zip codes cover San Mateo: 94401, 94402, 94403.
Zip code map
Map of 3 places loads as you scroll.
94401
- Residents
- 35,628
- Median income
- $121,258
- Home value
- $1,123,300
- Rent
- $2,713
Almost entirely in San Mateo · 3.1 sq mi
94402- Residents
- 25,498
- Median income
- $179,683
- Home value
- $2,000,001
- Rent
- $3,476
About 60% of this zip is in San Mateo · 5 sq mi
94403- Residents
- 43,459
- Median income
- $179,825
- Home value
- $1,725,900
- Rent
- $3,273
Almost entirely in San Mateo · 5.6 sq mi
Questions
What zip codes are in San Mateo?
94401, 94402, 94403. Some also cover parts of neighboring areas.
What is the most populated zip code in San Mateo?
94403, with about 43,459 residents.
Are zip codes the same as Census ZCTAs?
Almost. The Census Bureau’s ZIP Code Tabulation Areas approximate USPS zip codes so statistics can be published for them; PO box–only zips have no area and aren’t listed.
Source: U.S. Census Bureau 2020 ZIP Code Tabulation Areas, 2023 Gazetteer and ACS 2019–2023.