Antioch Zip Codes - Contra Costa County CA

Antioch, CA Zip Code Map

Antioch, CA is a city located in Contra Costa County, California and has a land area of 31.47 square miles (81.51 km2). The water area for the city is 0.23 square miles or 0.60 km2. There are 2 total unique zip codes in Antioch, California. The area code(s) for Antioch is 925.

Zip Codes for Antioch, CA (2)

Zip Code
City County
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94509 Antioch Contra Costa
94531 Antioch Contra Costa

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