Mackinac Island Post Office

Post office

7316 Market Street, Mackinac Island, MI 49757

Please call for an appointment at 906-847-3821. Hours are M-F 9:30am to 3:30pm.

Appointment required

Hours and addresses come from the State Department listing, updated November 2, 2026.

Book at USPS Directions Facilities in Mackinac Island Facilities in Michigan

Mackinac Island Post Office accepts new U.S. passport applications in person in Mackinac Island, MI. First-time and child visits are booked on the USPS scheduler. Search ZIP 49757. How to apply · How to renew