Ellsworth, IA has a population of 574 and is the 18,721st largest city in the United States. The population density is 640 per sq mi which is 1071% higher than the Iowa average and 606% higher than the national average. The median age in Ellsworth is 30 which is approximately 20% lower than the Iowa average of 38. In Ellsworth, 63% of the population over 15 years of age are married, 87% speak English and 12% speak Spanish. 86% of Ellsworth residents were born in Iowa, 11% were born out of state, 1% were born outside of the United States and 2% were foreign born.