Capital district of the United States, generally known as Washington D.C.
Where in the United States is District of Columbia? Location map of District of Columbia in the US.
District of Columbia is divided into 1 counties.
|Joined The Union:||November 30, -0001|
|Nickname:||the District, The Federal City|
Area Codes in District of Columbia - Below are all the area codes in District of Columbia. Clicking on an area code will show the cities in that area code.District of Columbia has area codes of 202, 771.