Welcome to Antioch ...
The city of Antioch is located in Contra Costa County<1>.
Antioch was established in 1850 and was incorporated February 6, 1872.
From the Census Estimates for 2019, Antioch has a population of 111,605 people<2> (see below for details).
The community of Antioch is 200 feet [61 m] above sea level.<3>.
Time Zone: Antioch lies in the Pacific Time Zone (PST/PDT) and observes daylight saving time
The telephone area code for Antioch: (925)
The ZIP codes for Antioch: 94509, 94531<4>
Websites for Antioch ...
Official Website: www.ci.antioch.ca.us/
Population Details ...
Taken from the 2019 Census Estimates, Antioch had an population of 111,605 people. This is an increase of 9.02% since the 2010 Census (or an increase of 23.28% since the 2000 Census).
At the time of the 2010 Census, Antioch had a population of 102,372 people (which is 9.73% of the total population of Contra Costa County). This makes Antioch the county's 3rd most populous community.
The population of Antioch represents 0.27% of the population of California (which has 37,253,956 people), making it the state's 64th most populous community.
With a 2010 count of 102,372 people, the population of Antioch increased 13.08% from the 2000 Census (with a count of 90,532 people).
More information can be found on the Census Page for Antioch.
Communities Also Named Antioch ...
Using our Gazetteer, we found that there are 95 communities that are also named Antioch - they are located in Alabama (7), Arkansas (6), Florida, Georgia (9), Illinois, Indiana (4), Kansas (2), Kentucky (5), Louisiana (3), Mississippi (7), Missouri (2), Nebraska, North Carolina (6), Ohio (2), Oklahoma (2), Ontario, South Carolina (6), Tennessee (13), Texas (11), Virginia (3) and West Virginia (3).
For more information, see our Tidbits & Trivia Page for Antioch.
Communities near Antioch ...
We have created a list of 10 communities that are near Antioch.
- Concord
(13 miles [20.9 km] to the west)- Jump to our Gazetteer entry for Concord
- Concord is located in Contra Costa County
- Population from the 2020 Census: 128,544 people
- Jump to TripAdvisor's Tourism page for Concord <5>
- San Ramon
(18 miles [29 km] to the southwest)- Jump to our Gazetteer entry for San Ramon
- San Ramon is located in Contra Costa County
- Population from the 2020 Census: 82,865 people
- Jump to TripAdvisor's Tourism page for San Ramon <5>
- Walnut Creek
(15 miles [24.1 km] to the southwest)- Jump to our Gazetteer entry for Walnut Creek
- Walnut Creek is located in Contra Costa County
- Population from the 2020 Census: 69,936 people
- Jump to TripAdvisor's Tourism page for Walnut Creek <5>
- Brentwood
(7 miles [11.3 km] to the southeast)- Jump to our Gazetteer entry for Brentwood
- Brentwood is located in Contra Costa County
- Population from the 2020 Census: 65,017 people
- Jump to TripAdvisor's Tourism page for Brentwood <5>
- Danville
(16 miles [25.7 km] to the southwest)- Jump to our Gazetteer entry for Danville
- Danville is located in Contra Costa County
- Population from the 2020 Census: 44,883 people
- Former name for Danville:
- Inmanville
- Jump to TripAdvisor's Tourism page for Danville <5>
- Martinez
(17 miles [27.4 km] to the west)- Jump to our Gazetteer entry for Martinez
- Martinez is located in Contra Costa County
- Population from the 2020 Census: 38,027 people
- Jump to TripAdvisor's Tourism page for Martinez <5>
- Pleasant Hill
(14 miles [22.5 km] to the west)- Jump to our Gazetteer entry for Pleasant Hill
- Pleasant Hill is located in Contra Costa County
- Population from the 2020 Census: 34,781 people
- Jump to TripAdvisor's Tourism page for Pleasant Hill <5>
- Benicia
(19 miles [30.6 km] to the west)- Jump to our Gazetteer entry for Benicia
- Benicia is located in Solano County
- Population from the 2020 Census: 27,988 people
- Jump to TripAdvisor's Tourism page for Benicia <5>
- Lafayette
(18 miles [29 km] to the southwest)- Jump to our Gazetteer entry for Lafayette
- Lafayette is located in Contra Costa County
- Population from the 2020 Census: 25,992 people
- Jump to TripAdvisor's Tourism page for Lafayette <5>
- Clayton
(8 miles [12.9 km] to the southwest)- Jump to our Gazetteer entry for Clayton
- Clayton is located in Contra Costa County
- Population from the 2020 Census: 11,527 people
- Jump to TripAdvisor's Tourism page for Clayton <5>
To Help With Your Genealogy Research ...
We have a couple of sections for those tracing their genealogy.
We created a list of cemeteries that are in the area around Antioch. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Antioch.
Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Antioch. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Antioch.
We also have a detailed list of newspapers that have been published in the area around Antioch. Our list includes 8 papers. See our Newspapers Page for Antioch.
TripAdvisor Tourism Pages for Antioch ...
Looking for more information about Antioch? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.
In addition to the Tourism page for Antioch, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Antioch.
Adding Antioch to Our Gazetteer ...
We originally found mention of Antioch in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.
From our notes, the earliest published mention we've found for Antioch was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<6>
From that list, the Antioch post office opened in 1851.
We also found Antioch in the book titled List of Post Offices in the United States (1870).
For more details, see References and Mentions for Antioch.
Off-the-Road Links ...
The official website for Antioch: www.ci.antioch.ca.us/
The official website for Contra Costa County: www.co.contra-costa.ca.us/
The official website for State of California: https://www.ca.gov/
Footnotes ...
| <1> | If you're interested in how the shape of California's counties, including Contra Costa, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <2> | Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Antioch. |
| <3> | The elevation is an estimate for the area around Antioch - it will be higher in some places and lower in others. |
| <4> | ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Antioch). When looking for a ZIP Code, whether Antioch or elsewhere, it's always best to check the website of the United States Postal Service (USPS). |
| <5> | While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program. |
| <6> | A copy of their list with background information can be found at: https://cblevins.github.io/us-post-offices/data-biography/ |