Osceola County Iowa is covered by a total of 9 ZIP Codes. There are 7 ZIP Codes in Osceola County that extend into adjacent counties (Clay County, Lyon County, Obrien County, and Sioux County). Of the ZIP codes within or partially within Osceola County there are 9 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 Osceola 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 | |||
|---|---|---|---|---|---|
| Sheldon | Standard | |||
| Ashton | Standard | |||
| Little Rock | Standard | |||
| Sanborn | Standard | |||
| Sibley | Standard | |||
| Harris | Standard | |||
| Hartley | Standard | |||
| Melvin | Standard | |||
| Ocheyedan | Standard |