Winnebago County Wisconsin is covered by a total of 19 ZIP Codes. There are 7 ZIP Codes in Winnebago County that extend into adjacent counties (Calumet County, Fond Du Lac County, Green Lake County, Outagamie County, Waupaca County, and Waushara County). Of the ZIP codes within or partially within Winnebago County there are 13 Standard ZIP Codes, 1 Unique ZIP Codes and 5 PO Box ZIP Codes.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Winnebago County and can be turned on and off. Each type of postal code can also be turned on and off.
| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Oshkosh | Standard | |||
| Oshkosh | Standard | |||
| Oshkosh | PO Box | |||
| Oshkosh | Standard | |||
| Oshkosh | Unique | |||
| Berlin | Standard | |||
| Butte Des Morts | PO Box | |||
| Fremont | Standard | |||
| Larsen | Standard | |||
| Menasha | Standard | |||
| Neenah | Standard | |||
| Neenah | PO Box | |||
| Omro | Standard | |||
| Pickett | Standard | |||
| Ripon | Standard | |||
| Van Dyne | Standard | |||
| Waukau | PO Box | |||
| Winnebago | PO Box | |||
| Winneconne | Standard |