ZIP Code 94403
San Mateo · San Mateo, California
94403 is the ZIP code of San Mateo in San Mateo, California, United States.
- ZIP Code
- 94403
- County
- San Mateo
- State
- California
- Country
- United States
Place with ZIP code 94403
| Place | County | Location |
|---|---|---|
| San Mateo | San Mateo | 37.539, -122.300 |
Near San Francisco
The nearest major city is San Francisco, about 28 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 94403?
San Mateo.
Which county and state is 94403 in?
San Mateo, California, United States.
What is the nearest major city to 94403?
San Francisco, about 28 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.