ZIP Codes in Auburn, WA
Auburn uses 3 ZIP codes, all in King County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 3 Auburn ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 98001 | standard | King | 37,460 |
| 98002 | standard | King | 37,509 |
| 98092 | standard | King | 50,224 |
Finding a ZIP+4 in Auburn
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 Auburn 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 Auburn addresses and download it complete.