Grand Marais is a city and the county seat of Cook County, Minnesota, United States, of which it is the only municipality. It is on Lake Superior's North Shore. Grand Marais had a population of 1,337 at the 2020 census. Before it was settled by French Canadians and before Minnesota's statehood, it was inhabited by the Ojibwe. The Gunflint Trail, a National Scenic Byway, begins in Grand Marais and ends near the border with Ontario.