Virginia Beach, Virginia is 3.7 times larger than Washington, D.C..
Area: 659 km2 calculated
Virginia Beach is an independent city located in the U.S. state of Virginia. As of the 2010 census, the population was 437,994. In 2013, the population was estimated to be 448,479. It is the most populous city in Virginia as well as the 39th most populous in the United States. 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