Iowa (USA) is 35% larger than Tennessee (USA).
Area: 144,669 km2 US Census
Population: 3,090,416 (July 2013) US Census
Iowa is a U.S. state in the Midwestern United States, a region sometimes called the "American Heartland". Wikipedia
Area: 106,798 km2 US Census
Population: 6,495,978 (July 2013) US Census
Tennessee is a U.S. state located in the Southeastern United States. Tennessee is the 36th most extensive and the 17th most populous of the 50 United States. Wikipedia