Why is Washington DC the country's capital?
It was built between 1791 and 1800 to be the national capital, under the Residence Act and subsequent acts of Congress.
Community Answer 1 Washington DC has a total area of 68.3 square miles. The entire area is one city, and the entire area is the capital of the US. __________________________ Community Answer 2 Washington DC doesn't have a capital. Washington DC is the capital of the US. Washington D.C. is the capital city of the United States.