Aruba is 1.3% larger than Washington, D.C..
Area: 180 km2 World Factbook
Population: 110,663 (July 2014) World Factbook
Aruba is an island 33 kilometres long; it is located about 1,600 kilometres west of the Lesser Antilles in the southern Caribbean Sea and 27 kilometres north of the coast of Venezuela. Together with Bonaire and Curaçao, it forms a group referred to as the ABC islands. 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