Post Offices

Post Offices in & near Mackinac Island, Michigan. Operating hours, locations, phone/fax number, services information.

Mackinac Island Post Office

Post Office in Mackinac Island, Michigan on Market St. Operating hours, phone number, services information, and other locations.

Address: 7316 Market St, Mackinac Island, MI 49757
Phone: 906-847-3821
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457

Retail Hours

Monday 9:00am - 1:00pm, 2:00pm - 4:00pm
Tuesday 9:00am - 1:00pm, 2:00pm - 4:00pm
Wednesday 9:00am - 1:00pm, 2:00pm - 4:00pm
Thursday 9:00am - 1:00pm, 2:00pm - 4:00pm
Friday 9:00am - 1:00pm, 2:00pm - 4:00pm
Saturday 10:00am - 11:00am
Sunday Closed

Lobby Hours

Monday 12:00pm
Tuesday 12:00pm
Wednesday 12:00pm
Thursday 12:00pm
Friday 12:00pm
Saturday 11:00am
Sunday Closed

Last Collection Times

Monday 9:00am - 1:00pm, 2:00pm - 4:00pm
Tuesday 9:00am - 1:00pm, 2:00pm - 4:00pm
Wednesday 9:00am - 1:00pm, 2:00pm - 4:00pm
Thursday 9:00am - 1:00pm, 2:00pm - 4:00pm
Friday 9:00am - 1:00pm, 2:00pm - 4:00pm
Saturday Closed
Sunday Closed