🇺🇸 United States · California
Antioch ZIP codes
Antioch, California, has 2 ZIP codes, from 94509 to 94531. Which one applies depends on the street address.
- ZIP Codes
- 2
- Population
- 110,542
- State
- California
- Coordinates
- 38.0049, -121.8058
All Antioch ZIP codes
9450994531
No code matches.
Includes codes within a few kilometres of the city centre. Data: GeoNames (CC BY 4.0) and zipcodestack.
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Frequently asked questions
What is the zip code of Antioch?
Antioch has 2 ZIP codes in California. The right code depends on the street address; the list on this page shows all of them, starting with 94509.
How many ZIP codes does Antioch have?
Our data lists 2 ZIP codes for Antioch, United States. The list includes codes of the city centre and surrounding districts.
How do I find the exact zip code for an address in Antioch?
Use the official postal service lookup or a geocoding API with the full street address. For software, the zipcodestack API returns city, region and coordinates for any zip code and can search codes by city or by radius.
Postal code API
Antioch ZIP codes in your app
zipcodestack looks up, validates and searches postal codes in 149 countries: city, state, coordinates, distances and radius search, as JSON.
/v1/code/city documentation ZIP code API All documentation
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GET https://api.zipcodestack.com/v1/code/city?city=Antioch&country=us
{
"query": { "city": "Antioch", "country": "us" },
"results": ["94509", "…"]
}Free postal code tools
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