SUMNER POST OFFICE 48889

Sumner Post Office Hours


Retail Hours

Monday-Friday 11:30am - 1:30pm
Saturday 11:30am - 12:30pm
Sunday Closed

Pickup Services Hours

Monday-Friday 11:30am - 1:30pm
Saturday 11:30am - 12:30pm
Sunday Closed

Monday-Saturday 6:00am - 6:00pm
Sunday Closed

PO Box Access Hours

USPS Shipping Rate Calculator

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Rosemarie Smith (Postmaster) rosemarie.k.smith@usps.gov
10674 W Saint Charles Rd
Sumner, MI 48889

The Sumner Post Office is located in the state of Michigan within Gratiot County. This location serves 1,322 Sumner residents with a median income of $41,083. It's estimated that approximately 2,110 packages pass through this post office each year.

Sumner Post Office Location


Sumner Michigan Local Links