The Williamston Post Office is located in the state of Michigan within Ingham County. This location serves 11,189 Williamston residents. It’s estimated that approximately 17,859 packages pass through this post office each year.

1295 E Grand River Rd
Williamston, MI 48895 

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9AM-5PM Mon.-Fri. | 9:30AM-12:30PM Sat. | Closed Sunday



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