Iron County is one of two landlocked counties in the Upper Peninsula of the U.S. state of Michigan. As of the 2020 census, the population was 11,631. The county seat is Crystal Falls.

Crystal Falls is a city and the county seat of Iron County, Michigan. As of the 2020 census, the city population was 1,598. The city is located within Crystal Falls Township, but is a separate municipal entity. The area first developed as a major center for iron mining and the timber industry; it has become increasingly popular for tourism in recent years.