Winneshiek County Iowa is covered by a total of 13 ZIP Codes. There are 10 ZIP Codes in Winneshiek County that extend into adjacent counties (Allamakee County, Chickasaw County, Clayton County, Fayette County, and Howard County). Of the ZIP codes within or partially within Winneshiek County there are 10 Standard ZIP Codes and 2 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 Winneshiek 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 | |||
|---|---|---|---|---|---|
| Decorah | Standard | |||
| Calmar | Standard | |||
| Castalia | Standard | |||
| Cresco | Standard | |||
| Dorchester | Standard | |||
| Fort Atkinson | Standard | |||
| Highlandville | PO Box | |||
| Ossian | Standard | |||
| Postville | Standard | |||
| Ridgeway | Standard | |||
| Spillville | PO Box | |||
| Waucoma | Standard | |||
| Waukon | Standard |