Washington, D.C. is 2.7 times larger than Syracuse, New York.
Area: 66 km2 calculated
Syracuse is a city in, and the county seat of, Onondaga County, New York, United States. It is the largest U.S. city with the name "Syracuse", and is the fifth most populous city in the state of New York. 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