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U.S. ZIP Code 94531
5-digit United States postal code #94531, Antioch, CA
ZIP code 94531 is located in the city (place name) Antioch, сounty Contra Costa in the state of California. The population in ZIP code 94531 is 40290 and the population density is 1421.4. ZIP code 94531 refers to сounty Contra Costa having сounty FIPS 06013, the ratio of people from different counties in this ZIP code is as follows: all county weights - 06013: 100%. In the area of the ZIP code 94531 valid time zone America/Los_Angeles.
ZIP: 94531
County: Contra Costa
Place Name: Antioch
State: California
State Abbreviation: CA
Coordinates: 37° 57' 56.664" N, 121° 46' 32.916" W
Latitude: 37.965740000000
Longitude: -121.775810000000
Population: 40290
Density: 1421.4/km2
Time zone: America/Los_Angeles
County FIPS: 06013
All county weights: 06013: 100%