Des Moines, Iowa is 56% larger than Minneapolis.
Area: 235 km2 calculated
Des Moines is the capital and the most populous city in the U.S. state of Iowa. It is also the county seat of Polk County. A small portion of the city extends into Warren County. It was incorporated on September 22, 1851, as Fort Des Moines which was shortened to "Des Moines" in 1857. Wikipedia
Area: 151 km2 calculated
Minneapolis, officially the City of Minneapolis, is the county seat of Hennepin County, and largest of the Twin Cities, the 14th-largest metropolitan area in the United States, containing approximately 3.8 million residents. Wikipedia