Zip Code Lookup - Blackhawk, Contra Costa county California
| City | ZipCode | Area Code(s) | County | state | Time Zone | MSA |
| Danville (Danville Zip Code Lookup) | 94506 (94506 Zip Code Lookup) | 925 | Contra Costa | California | Pacific | 5775 |
| Blackhawk (Blackhawk Zip Code Lookup) | 94506 (94506 Zip Code Lookup) | 925 | Contra Costa | California | Pacific | 5775 |