Iowa Falls is a city in Hardin County, Iowa, United States. Iowa Falls is the home of Ellsworth Community College. It is also a regional transporta…Iowa Falls is a city in Hardin County, Iowa, United States. Iowa Falls is the home of Ellsworth Community College. It is also a regional transportation center, located along U.S. Routes 20 and 65 and the Canadian National and Union Pacific Railroads. The population was 5,106 at the time of the 2020 census.