Topinabee, MI

ZIP code 49791 is located in St. Ignace, Michigan. The area is home to popular landmarks such as the St. Ignace Mission, a historic Catholic church dating back to the 1670s, and the Castle Rock, a limestone sea stack offering panoramic views of the Straits of Mackinac. This picturesque town is also known for its proximity to the Mackinac Bridge, one of the longest suspension bridges in the world.