Washington, D.C. is 2.6 times larger than Kenosha, Wisconsin.
Area: 70 km2 calculated
Kenosha is a city in and the county seat of Kenosha County in U.S. state of Wisconsin. With a population of 100,150 as of November 2012, Kenosha is the fourth-largest city in Wisconsin. Wikipedia
Area: 178 km2 calculated
Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. Wikipedia