Minden, IA has a population of 634 and is the 18,084th largest city in the United States. The population density is 1,517 per sq mi which is 2677% higher than the Iowa average and 1575% higher than the national average. The median age in Minden is 41 which is approximately 8% higher than the Iowa average of 38. In Minden, 79% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 59% of Minden residents were born in Iowa, 40% were born out of state, 0% were born outside of the United States and 0% were foreign born.