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94509 ZIP Code Detail Information
94509 ZIP code is designated for Antioch in Contra Costa of California. More information on this ZIP code is available below. If you came here after performing a reverse phone lookup, these details are provided to give you a general idea of the phone number's location.
94509 ZIP Code - Map, City, County, State, and Location
| City: | Antioch |
| County: | Contra Costa |
| State: | California (CA) |
| Latitude: | 37.9939 |
| Longitude: | -121.8089 |
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