ZIP Code 94903 – San Rafael, CA
San Rafael, California · Marin County · Pacific time
| ZIP code | 94903 |
|---|---|
| City | San Rafael |
| State | California |
| County | Marin County |
| Population | 30,615 |
| Time zone | Pacific · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 19.88 sq mi |
| Center (lat, long) | 38.0221, -122.5588 |
Area codes in this area
These are the area codes that most often serve ZIP 94903 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Map
Nearby ZIP codes
About ZIP 94903
ZIP code 94903 is assigned to San Rafael, California. It lies in Marin County. Its Census area covers about 19.88 square miles of land. The closest neighboring ZIP is 94960 (San Anselmo), about 2 miles away.
Every address in 94903 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources