Iron Junction, MN has a population of 90 and is the 27,202nd largest city in the United States. The population density is 109 per sq mi which is 75% higher than the Minnesota average and 20% higher than the national average. The median age in Iron Junction is 52 which is approximately 36% higher than the Minnesota average of 38. In Iron Junction, 64% of the population over 15 years of age are married, 93% speak English and 0% speak Spanish. 80% of Iron Junction residents were born in Minnesota, 17% were born out of state, 0% were born outside of the United States and 3% were foreign born.