Ely is a city in St. Louis County, Minnesota, United States. The population was 3,268 at the 2020 census. Located on the Vermilion iron range, …Ely is a city in St. Louis County, Minnesota, United States. The population was 3,268 at the 2020 census. Located on the Vermilion iron range, Ely once had several iron ore mines. It is an entry point for campers and canoers into the Boundary Waters Canoe Area Wilderness and Canada's Quetico Provincial Park wilderness area. The International Wolf Center and the North American Bear Center are nearby.