Leonidas, MN has a population of 42 and is the 28,353rd largest city in the United States. The population density is 33 per sq mi which is 47% lower than the Minnesota average and 64% lower than the national average. The median age in Leonidas is 55 which is approximately 44% higher than the Minnesota average of 38. In Leonidas, 66% of the population over 15 years of age are married, 97% speak English and 0% speak Spanish. 81% of Leonidas residents were born in Minnesota, 19% were born out of state, 0% were born outside of the United States and 0% were foreign born.