Post Offices
Post Offices in & near Grattan, Michigan. Operating hours, locations, phone/fax number, services information.
Cannonsburg Post Office
Post Office in Cannonsburg, Michigan on Cannonsburg Rd NE. Operating hours, phone number, services information, and other locations.
Address: 7825 Cannonsburg Rd NE, Cannonsburg, MI 49317
Phone: 616-874-8270
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Monday 8:30am - 11:30am, 12:00pm - 3:00pmTuesday 8:30am - 11:30am, 12:00pm - 3:00pm
Wednesday 8:30am - 11:30am, 12:00pm - 3:00pm
Thursday 8:30am - 11:30am, 12:00pm - 3:00pm
Friday 8:30am - 11:30am, 12:00pm - 3:00pm
Saturday 8:00am - 10:00am
Sunday Closed
Lobby Hours
Monday 12:00pmTuesday 12:00pm
Wednesday 12:00pm
Thursday 12:00pm
Friday 12:00pm
Saturday 10:00am
Sunday Closed
Last Collection Times
Monday 10:00am - 11:30amTuesday 10:00am - 11:30am
Wednesday 10:00am - 11:30am
Thursday 10:00am - 11:30am
Friday 10:00am - 11:30am
Saturday Closed
Sunday Closed