ZIP Codes in Garnavillo, IA
Garnavillo uses 1 ZIP code, all in Clayton County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 1 Garnavillo ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 52049 | standard | Clayton | 1,370 |
Finding a ZIP+4 in Garnavillo
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 Garnavillo 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 Garnavillo addresses and download it complete.