Gratiot County Michigan is covered by a total of 22 ZIP Codes. There are 12 ZIP Codes in Gratiot County that extend into adjacent counties (Clinton County, Ionia County, Isabella County, Midland County, Montcalm County, Saginaw County, and Shiawassee County). Of the ZIP codes within or partially within Gratiot County there are 19 Standard ZIP Codes and 3 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 Gratiot 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 | |||
|---|---|---|---|---|---|
| Brant | Standard | |||
| Breckenridge | Standard | |||
| Merrill | Standard | |||
| Wheeler | Standard | |||
| Alma | Standard | |||
| Ashley | Standard | |||
| Bannister | Standard | |||
| Carson City | Standard | |||
| Elm Hall | PO Box | |||
| Elsie | Standard | |||
| Elwell | Standard | |||
| Hubbardston | Standard | |||
| Ithaca | Standard | |||
| Middleton | Standard | |||
| North Star | PO Box | |||
| Perrinton | Standard | |||
| Pompeii | PO Box | |||
| Riverdale | Standard | |||
| Saint Johns | Standard | |||
| Saint Louis | Standard | |||
| Sumner | Standard | |||
| Vestaburg | Standard |