Michael J Williams (Postmaster)
michael.j.williams@usps.gov
221 E Michigan Ave
Grass Lake, MI 49240
Grass Lake, MI 49240
The Grass Lake Post Office is located in the state of Michigan within Jackson County. This location serves 8,703 Grass Lake residents with a median income of $70,635. It's estimated that approximately 13,891 packages pass through this post office each year.
Grass Lake Post Office Location 49240
Grass Lake Michigan Local Links
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