What is the capital of the United States?

The capital of the United States is Washington, D.C. This city serves as the center of the federal government and is home to the President, the United States Congress, and the Supreme Court. Washington, D.C. was specifically chosen as the capital to serve as a neutral location that would be distinct from any state, ensuring that no single state would have undue influence over the federal government.

The other cities listed are significant urban centers in the U.S., but none serve as the capital. New York City was the first capital of the United States under the Articles of Confederation, and it played a crucial role in the early history of the nation. Los Angeles is known for its entertainment industry and is the largest city in California, while Chicago is known for its historical significance and economic contributions, but neither of these cities holds the status of being the national capital. Thus, Washington, D.C. is the correct answer as it represents the political heart and governance of the United States.