Antioch
City in Contra Costa County, California
Antioch is a city in Contra Costa County, California, with 115,291 residents (2020 Census). It sits at 43 ft (13 m) above sea level. The nearest town is Brentwood, 5.2 miles SE.
- 115,291residents (2020 Census)
- 43 ftelevation · 13 m
- 29.2 sq miland area · 75.6 km²
- 3,952 / sq mipopulation density
- 94509main ZIP code (2 in total)
About Antioch
Antioch is the third-most populous city in Contra Costa County, California, United States. The city is located in the East Bay region of the San Francisco Bay Area along the Sacramento–San Joaquin River Delta. The city's population was 115,291 at the 2020 census. The city has grown substantially more diverse since the 1970s.
Text: Wikipedia · CC BY-SA 4.0
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- Median household income
- $97,465
- Median home value
- $629,700
- Median rent
- $2,278/mo
- Median age
- 38.4
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Map of Antioch
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Open in Google Maps ›Antioch, CA population
Antioch had 115,291 residents in the 2020 Census.
| 2020 Census | 115,291 |
|---|---|
| Density | 3,952 per sq mi (1,526 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Antioch at a glance
| State | California (CA) |
|---|---|
| County | Contra Costa County |
| Type | City |
| Population | 115,291 (2020) |
| Land area | 29.18 sq mi (75.6 km²) |
| Water area | 0.77 sq mi (1.99 km²) |
| Elevation | 43 ft (13 m) |
| Coordinates | 37.9784° N, 121.7983° W |
| ZIP codes | 94509, 94531 |
| Official website | antiochca.gov |
| Census code (GEOID) | 0602252 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Antioch
- Brentwood5.2 mi SE
- Pittsburg6.2 mi NW
- Oakley6.4 mi E
- Clayton7.6 mi W
- Knightsen8.2 mi E
- Bay Point9.7 mi W
- Bethel Island9.8 mi E
- Concord11.1 mi W
- Byron11.1 mi SE
- North Gate12.0 mi SW
- Discovery Bay12.0 mi SE
- Diablo12.8 mi SW
Straight-line distance between town centers.
Frequently asked questions about Antioch
What county is Antioch in?
Antioch is in Contra Costa County, California.
What is the population of Antioch, CA?
115,291 people lived in Antioch at the 2020 Census.
What is the ZIP code of Antioch, CA?
The main ZIP code is 94509. Other ZIP codes: 94531.
What is the elevation of Antioch?
43 feet (13 m) above sea level.
What towns are near Antioch?
Brentwood (5.2 mi), Pittsburg (6.2 mi), Oakley (6.4 mi), Clayton (7.6 mi), Knightsen (8.2 mi).
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