In what state is Washington DC? Actually, Washington DC is not IN a state, and is not itself a state. Washington DC is a district (specifically, the District of Columbia), and is located in the mid-Atlantic region of the United States, at the confluence of the Potomac and Anacostia rivers. It is bordered on the north, east, and southeast by Maryland and on the southwest by Virginia.
Washington DC was originally created from land ceded by the states of Virginia and Maryland. In 1871, the cities of Washington and Georgetown were consolidated with Washington County to become known as Washington DC, making the city, the county, and the federal district one and the same.
The city of Washington DC has a total land area of about 61 square miles.