What is the capital of the United States?

Washington, D.C. is the capital of the United States because it was specifically established to serve as the nation's capital following the American Revolution. The decision to place the capital along the Potomac River was part of a compromise to accommodate both northern and southern states during the formation of the federal government. In 1790, Congress approved the creation of a federal district that would not belong to any state, ensuring neutrality and independence for the federal government. Washington, D.C. serves as the center of the federal government, housing key institutions such as the White House, the United States Capitol, and the Supreme Court. This strategic location and historical significance are why Washington, D.C. is recognized as the capital today.