Clay County Iowa is covered by a total of 16 ZIP Codes. There are 10 ZIP Codes in Clay County that extend into adjacent counties (Buena Vista County, Cherokee County, Dickinson County, Emmet County, Obrien County, Osceola County, and Palo Alto County). Of the ZIP codes within or partially within Clay County there are 14 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 Clay 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 | |||
|---|---|---|---|---|---|
| Ayrshire | Standard | |||
| Sioux Rapids | Standard | |||
| Linn Grove | Standard | |||
| Peterson | Standard | |||
| Sutherland | Standard | |||
| Spencer | Standard | |||
| Dickens | Standard | |||
| Everly | Standard | |||
| Fostoria | PO Box | |||
| Gillett Grove | PO Box | |||
| Greenville | Standard | |||
| Hartley | Standard | |||
| Royal | Standard | |||
| Ruthven | Standard | |||
| Terril | Standard | |||
| Webb | Standard |