ZIP Codes in West Covina, CA
West Covina uses 3 ZIP codes, all in Los Angeles County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 3 West Covina ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 91790 | standard | Los Angeles | 44,710 |
| 91791 | standard | Los Angeles | 33,028 |
| 91792 | standard | Los Angeles | 30,629 |
Finding a ZIP+4 in West Covina
Knowing which of these 3 ZIP codes covers an address only gets you partway. The four-digit extension identifies the specific delivery point — typically one side of one block. Two houses facing each other on the same West Covina street almost always have different ZIP+4 codes even though they share all five leading digits.
Appending ZIP+4 to a mailing list?
Upload a CSV of West Covina addresses and download it complete.