ZIP Codes in Oceanside, CA
Oceanside uses 4 ZIP codes, all in San Diego County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 4 Oceanside ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 92054 | standard | San Diego | 38,417 |
| 92056 | standard | San Diego | 53,616 |
| 92057 | standard | San Diego | 56,835 |
| 92058 | standard | San Diego | 49,834 |
Finding a ZIP+4 in Oceanside
Knowing which of these 4 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 Oceanside 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 Oceanside addresses and download it complete.