ZIP Code 94531 — Antioch, California
ZIP code 94531 belongs to Antioch, California (county: Contra Costa). It sits at latitude 37.9658, longitude -121.7758 in the America/Los_Angeles time zone.
| Field | Value |
|---|---|
| ZIP code | 94531 |
| City / place | Antioch |
| State | California |
| County | Contra Costa |
| Coordinates | 37.9658, -121.7758 |
| Time zone | America/Los_Angeles |
| City population | 110,542 |
| ZIP type | PO box / unique |
| Telephone area codes | 925 |
What is ZIP code 94531?
94531 is a five-digit ZIP code used by the United States Postal Service for Antioch, California. It is one of 2 ZIP codes associated with Antioch in this dataset. The delivery area is served from the local post office network, so the ZIP can cover more than one neighbourhood or even cross a city line.
ZIP codes in the same city
Area codes and city profile
Telephone area codes serving Antioch: 925. For population, county and county-seat details, see Antioch and all places in California.
Nearby ZIP codes
94509 4.3 km · Antioch94561 7.1 km · Oakley94513 8.4 km · Brentwood94517 13.0 km · Clayton94565 13.1 km · Pittsburg94527 16.0 km · Concord94505 16.7 km · Discovery Bay94521 17.5 km · Concord
Frequently asked questions
What city is ZIP code 94531 in?
ZIP code 94531 is in Antioch, California.
What county is 94531 in?
94531 belongs to Contra Costa in California.
What time zone is ZIP code 94531 in?
94531 is in the America/Los_Angeles time zone.