Live Chat I-75 Community Nearby Traffic Mackinac Island Post Office (Amenity postoffice) 2024-05-27 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Mackinac Island Post Office (Amenity Postoffice) Saint Ignace, MI 10.71 Mackinaw City, MI 12.08 Pointe Aux Pins, MI 16.63 Interstate highway exits close to Mackinac Island Post Office (Amenity Postoffice) Exit 344a, i75 7.89 Exit 344b, i75 7.89 Exit 345, i75 8.47 Interstate highways close to Mackinac Island Post Office (Amenity Postoffice) i75 map 7.61 i43 map 300.58 i475mi map 314.76 State roads close to Mackinac Island Post Office (Amenity Postoffice) MI M 185 map 1.02 NHS HIGH PRIORITY CORRIDORS 5 map 7.59 US 2 WI MI map 7.75