
Mountain Iron
- County:
- St. Louis County
- County Seat:
- No
- Area (mi²):
- 68.107
- State:
- Minnesota
Mountain Iron is a city located in St. Louis County, Minnesota. Mountain Iron has a 2025 population of 2,844. Mountain Iron is currently declining at a rate of -0.18% annually and its population has decreased by -0.84% since the most recent census, which recorded a population of 2,868 in 2020.
The average household income in Mountain Iron is $86,989 with a poverty rate of 9.32%. The median age in Mountain Iron is 49.5 years: 49.4 years for males, and 49.8 years for females.