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USPS
MI
Sumner
USPS Location
- Sumner
10674 W Saint Charles Rd, Sumner, MI 48889
989-833-7409
Mo. 10:00am-3:00pm
Tu. 10:00am-3:00pm
We. 10:00am-3:00pm
Th. 10:00am-3:00pm
Fr. 10:00am-3:00pm
Sa. 10:30am-11:30am
Su. CLOSED
Money Orders (Domestic), PO Box Online, Pickup Accountable Mail, Pickup Hold Mail
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