94509 postal code
United StatesUpdated 2026-11-09Antioch, CaliforniaContra Costa5 digits
Postal code details
1 placeCode
94509
Place
Antioch
Region
California
County
Contra Costa
Coordinates
37.9939, -121.8089
Accuracy
4 / 6
Country
United States
Location
OpenStreetMap ↗
37.9939, -121.8089© OpenStreetMap
Ad slot · 300×250
Places under this code
1| Place | Region | County | Coordinates |
|---|---|---|---|
| Antioch | California | Contra Costa | 37.9939, -121.8089 |
Same code in other countries
2| Country | Place | Region |
|---|---|---|
| FR France | Champigny-sur-Marne | Île-de-France |
| MY Malaysia | Lundu | Sarawak |
FAQ
Which city is 94509 in?
Antioch, California, United States.
What are the coordinates of 94509?
37.9939, -121.8089
Is 94509 used in other countries?
Yes, 2 other countries.
Updated 2026-11-09. Attribution in Data & license.