ZIP Code 94509
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.
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Area Profile
US Census (ACS 5-year · Gazetteer)
71,013
population
$81,512
median household income
4,071
people / sq mi
$565,300
median home value
$2,052
median gross rent
37.6
median age
24,048
housing units
23,431
households
17.4
land area (sq mi)
Key places in 94509
- Contra Loma Park park
- Riverview Union High School historic
Nearby notable places
- Solano historic
Points of interest
- grocery
- coffee
- gas
- fast_food
Brands
- McDonald's (4)
- Domino's (1)
- Jack in the Box (1)
- KFC (1)
- Panda Express (1)
- Shell (1)
- Speedway (1)
- Starbucks (1)
- Taco Bell (1)