Iron Mountain
- County:
- Dickinson County
- County Seat:
- Yes
- Area (mi²):
- 7.542
- State:
- Michigan
Iron Mountain is a city located in Dickinson County, Michigan. Iron Mountain has a 2026 population of 7,524. It is also the county seat of Dickinson County. Iron Mountain is currently declining at a rate of -0.34% annually but its population has increased by 0.2% since the most recent census, which recorded a population of 7,509 in 2020.