St. Ignace is a city in the U.S. state of Michigan and the county seat of Mackinac County. The city had a population of 2,452 at the 2010 census. St. Ignace Township is located just to the north of the city, but the two are administered autonomously. St. Ignace is located along Lake Huron in the Upper Peninsula on the northern side of the Straits of Mackinac. St. Ignace serves as a gateway to the state's Upper Peninsula for travellers coming from... Show more

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