City · California · United States
Port Costa, CA — ZIP codes
1 ZIP code · Contra Costa County
- City
- Port Costa
- County
- Contra Costa
- State
- California
- Country
- United States
- Postal code
- 94569Single source
- Coordinates
- 38.0460, -122.1866 View on OpenStreetMap
- Area codes
- 510, 341 (from the nearest rate centre)
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 94569 | Port Costa | Single source |
Sources and verification
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Last generated : 2026-08-21. Report an error.