City · California · United States
Oakley, CA — ZIP codes
1 ZIP code · Contra Costa County
- City
- Oakley
- County
- Contra Costa
- State
- California
- Country
- United States
- Postal code
- 94561Single source
- Coordinates
- 37.9940, -121.7036 View on OpenStreetMap
ZIP codes (1)
| Postal code | Place name | Verification |
|---|---|---|
| 94561 | Oakley | 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. Last generated : 2026-08-21. Report an error.