Saint Ignace, MI

ZIP code 49781 encompasses the town of St. Ignace, Michigan, situated in Mackinac County. Known as the gateway to the Upper Peninsula, St. Ignace boasts the historic Mackinac Bridge, which connects the Upper and Lower Peninsulas of Michigan. Visitors can also explore the Father Marquette National Memorial, a tribute to the French Jesuit missionary who founded the town in the 17th century.