Michigan (USA) is 623 times larger than Des Moines, Iowa.
Michigan is a state in the Great Lakes region of the Midwestern United States. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake". Michigan is the 9th most populous of the 50 United States, with the 11th most extensive total area. Wikipedia
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