Cass County Iowa is covered by a total of 10 ZIP Codes. There are 8 ZIP Codes in Cass County that extend into adjacent counties (Adair County, Adams County, Audubon County, Montgomery County, Page County, Pottawattamie County, Shelby County, and Taylor County). Of the ZIP codes within or partially within Cass County there are 10 Standard 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 Cass 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 | |||
|---|---|---|---|---|---|
| Anita | Standard | |||
| Atlantic | Standard | |||
| Wiota | Standard | |||
| Bridgewater | Standard | |||
| Cumberland | Standard | |||
| Massena | Standard | |||
| Villisca | Standard | |||
| Griswold | Standard | |||
| Lewis | Standard | |||
| Marne | Standard |