Intro
Discover the 5 essential facts about Antioch zip code, including demographics, housing market trends, and quality of life. Learn about the areas population growth, median home prices, and top attractions. Get the inside scoop on living in Antioch, from commute times to school districts, and find out why its a popular choice for Bay Area residents.
The city of Antioch, located in Contra Costa County, California, is a thriving community with a rich history and diverse culture. As with any city, understanding the zip code is essential for navigating the area, receiving mail and packages, and even determining property values. In this article, we will delve into the world of Antioch zip codes, exploring five essential facts that you need to know.

Fact #1: Antioch Has Multiple Zip Codes
Unlike some smaller cities, Antioch has multiple zip codes that serve different areas of the city. The main zip codes for Antioch are 94509, 94531, and 94513. Each zip code corresponds to a specific geographic region, making it essential to use the correct zip code when sending mail or packages.
Breakdown of Antioch Zip Codes:
- 94509: This zip code serves the central and eastern parts of Antioch, including the downtown area and the Antioch Marina.
- 94531: This zip code serves the western and southern parts of Antioch, including the neighborhoods of Oakley and Bay Point.
- 94513: This zip code serves the northern part of Antioch, including the neighborhoods of Antioch Hills and Deer Valley.
Fact #2: Antioch Zip Codes Affect Property Values
The zip code of a property in Antioch can significantly impact its value. Properties located in zip code 94509, which includes the downtown area and the marina, tend to be more valuable due to their proximity to amenities and services. On the other hand, properties located in zip code 94531, which includes the neighborhoods of Oakley and Bay Point, may be less valuable due to their farther distance from the city center.

How Zip Codes Impact Property Values:
- Proximity to amenities: Properties located in zip codes with easy access to amenities such as schools, parks, and shopping centers tend to be more valuable.
- School districts: Properties located in zip codes with highly-rated school districts tend to be more valuable.
- Commute time: Properties located in zip codes with shorter commute times to major cities tend to be more valuable.
Fact #3: Antioch Zip Codes Determine Mail and Package Delivery
The zip code of a property in Antioch determines how mail and packages are delivered. The United States Postal Service (USPS) uses zip codes to route mail and packages to their final destinations. Using the correct zip code ensures that your mail and packages arrive at their intended destination quickly and efficiently.
How to Use the Correct Zip Code:
- Check the USPS website: Visit the USPS website to find the correct zip code for your address.
- Use online tools: Use online tools such as zip code finders to determine the correct zip code for your address.
- Check with your local post office: Contact your local post office to confirm the correct zip code for your address.

Fact #4: Antioch Zip Codes Impact Demographic Data
The zip code of a property in Antioch can provide valuable insights into demographic data such as population density, age, and income. By analyzing zip code data, researchers and businesses can gain a better understanding of the local population and make informed decisions.
How Zip Codes Impact Demographic Data:
- Population density: Zip codes with high population densities tend to have more amenities and services.
- Age: Zip codes with younger populations tend to have more families and children.
- Income: Zip codes with higher incomes tend to have more affluent residents.
Fact #5: Antioch Zip Codes Are Subject to Change
Zip codes in Antioch are subject to change over time due to various factors such as population growth, urban development, and changes in postal routes. It is essential to stay up-to-date with the latest zip code changes to ensure that your mail and packages are delivered correctly.

How to Stay Up-to-Date with Zip Code Changes:
- Check the USPS website: Visit the USPS website to find the latest information on zip code changes.
- Sign up for email updates: Sign up for email updates from the USPS to stay informed about zip code changes.
- Contact your local post office: Contact your local post office to confirm the latest zip code information.
In conclusion, understanding the zip code of Antioch is essential for navigating the city, receiving mail and packages, and even determining property values. By staying informed about the latest zip code changes and using the correct zip code, you can ensure that your mail and packages arrive at their intended destination quickly and efficiently.
We hope you found this article informative and helpful. If you have any questions or comments, please feel free to share them with us.
What is the main zip code for Antioch?
+The main zip code for Antioch is 94509.
How many zip codes does Antioch have?
+Antioch has three main zip codes: 94509, 94531, and 94513.
How do I find the correct zip code for my address?
+You can find the correct zip code for your address by visiting the USPS website, using online tools such as zip code finders, or contacting your local post office.