ZIP Codes in Palmer, AK
Palmer uses 1 ZIP code, all in Matanuska-Susitna County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 1 Palmer ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 99645 | standard | Matanuska-Susitna | 32,103 |
Finding a ZIP+4 in Palmer
Knowing which of these 1 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 Palmer 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 Palmer addresses and download it complete.