ZIP codes in Union City, California
Union City has 1 ZIP codes in this directory. Each ZIP is listed with its county, population and time zone.
| ZIP | County | Population | Time zone |
|---|---|---|---|
| 94587 | Alameda | 74,494 | America/Los_Angeles |
About Union City ZIP codes
ZIP codes in Union City are part of the USPS delivery network for California. The codes above are ordered numerically; each links to a page with coordinates, nearby ZIPs and more detail. Population shown is the estimated population of the city: 74,494.