New Orleans is 5.1 times larger than Washington, D.C..
Area: 903 km2 calculated
Population: 369,250 (2012)
Wikipedia
Area: 178 km2 calculated
Population: 632,323 (2012)
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