Kingsley, IA has a population of 1,436 and is the 12,946th largest city in the United States. The population density is 893 per sq mi which is 1535% higher than the Iowa average and 886% higher than the national average. The median age in Kingsley is 42 which is approximately 11% higher than the Iowa average of 38. In Kingsley, 67% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 80% of Kingsley residents were born in Iowa, 19% were born out of state, 0% were born outside of the United States and 0% were foreign born.