Postal Codes for Antioch, California
The postal codes for Antioch, California, United States (2 codes, e.g. 94509). With map location and coordinates.
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The postal codes for Antioch, California, United States (2 codes):
| Postal code | Place | County / area | Coordinates |
|---|---|---|---|
| 94509 | Antioch | Contra Costa | 37.994, -121.809 |
| 94531 | Antioch | Contra Costa | 37.966, -121.776 |
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Frequently asked questions
What is the postal code of Antioch?
Antioch has 2 postal codes; the first is 94509. They are all listed above with their areas.
Why does Antioch have more than one postal code?
Larger towns and cities are split into several postal-code areas, each serving a different neighbourhood, PO-box range or large organisation.