ZIP Codes in Green Bay, WI
Green Bay uses 7 ZIP codes, all in Brown County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 7 Green Bay ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 54301 | standard | Brown | 21,724 |
| 54302 | standard | Brown | 30,333 |
| 54303 | standard | Brown | 28,153 |
| 54304 | standard | Brown | 28,502 |
| 54307 | standard | Brown | 1,128 |
| 54311 | standard | Brown | 37,879 |
| 54313 | standard | Brown | 41,422 |
Finding a ZIP+4 in Green Bay
Knowing which of these 7 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 Green Bay 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 Green Bay addresses and download it complete.