ZIP Code 94509 – Antioch, California
The 94509 ZIP Code belongs to Antioch, California. The population in this 94509 ZIP code is 71,013. The latitude is 37.99214 and longitude is -121.8142 in 94509 Antioch, California. The time zone for this 94509 ZIP code is America/Los_Angeles.
| City | Antioch |
| Zip Code | 94509 |
| State | California |
| County | Contra Costa |
| Population | 71,013 |
| Latitude | 37.99214 |
| Longitude | -121.8142 |
| Time Zone | America/Los_Angeles |