ZIP Codes in Moraga, CA
Moraga uses 2 ZIP codes, all in Contra Costa County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 2 Moraga ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 94556 | standard | Contra Costa | 15,998 |
| 94575 | standard | Contra Costa | 975 |
Finding a ZIP+4 in Moraga
Knowing which of these 2 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 Moraga 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 Moraga addresses and download it complete.