Geographic Regions and Area Codes in Washington, D.C.

Washington, D.C. is strategically located in the Mid-Atlantic region of the United States, bordered by Northern Virginia to the southwest and Maryland to the southeast, northeast, and northwest. The city covers a total area of 68.3 square miles, with 61.4 square miles of land and 6.9 square miles of water. Washington, D.C. is divided into eight wards and 37 Advisory Neighborhood Commissions (ANCs), encompassing a total of 127 named neighborhoods. The primary area code for Washington, D.C. is 202, which covers the entire District of Columbia area located east of the Potomac River. This area code is also used in neighboring areas within Virginia and Maryland.