Mitchellville, IA has a population of 2,271 and is the 10,336th largest city in the United States. The population density is 973 per sq mi which is 1681% higher than the Iowa average and 974% higher than the national average. The median age in Mitchellville is 34 which is approximately 10% lower than the Iowa average of 38. In Mitchellville, 52% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 78% of Mitchellville residents were born in Iowa, 20% were born out of state, 0% were born outside of the United States and 1% were foreign born.