Aplington, IA has a population of 1,005 and is the 15,128th largest city in the United States. The population density is 1,207 per sq mi which is 2109% higher than the Iowa average and 1232% higher than the national average. The median age in Aplington is 39 which is approximately 2% higher than the Iowa average of 38. In Aplington, 71% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 88% of Aplington residents were born in Iowa, 11% were born out of state, 0% were born outside of the United States and 1% were foreign born.