District of Columbia
Washington, D.C., officially the District of Columbia and commonly known as Washington, is the federal capital city of the United States, and its only federal district.
The city stands on the north-east bank of the Potomac River, across from the state of Virginia, surrounded by Maryland to its north, east, and south. The district was named for Columbia, the female personification of the American nation, through which human form and attributes are applied to the United States. "Washington" is a more recent addition to the city's common name, and is from the name of George Washington, the first U.S. president.
The U.S. Constitution in 1789 called for the creation of a federal district under exclusive jurisdiction of the U.S. Congress, which would become a constituent part of the Union that is not part of any state or territory. The Residence Act, adopted on July 16, 1790, approved the creation of the capital district along the Potomac River, and is considered the city's founding date. In 1800, when the capital was moved from Philadelphia, the 6th Congress started meeting in the then-unfinished Capitol Building, and the second president, John Adams, moved into the newly finished White House. In 1801, the District of Columbia, formerly part of Maryland and Virginia and including the existing settlements of Georgetown and Alexandria, was officially made the federal district; initially, the city was a separate settlement within the larger district. In 1846, Congress reduced the size of the district when it returned the land that Virginia had ceded, including the city of Alexandria. In 1871, it made the entire district into a single municipality. There have been several failed efforts to reduce the district further and admit the rest as a state since the 1880s, including a statehood bill that passed the House of Representatives in 2021 but was not adopted by the U.S. Senate.
Designed in 1791 by Pierre Charles L'Enfant, the city is split into quadrants that meet at the Capitol Building, with 131 neighborhoods overall. As of the 2020 census, the city's population was 689,545. During the workweek, commuters from the city's Maryland and Virginia suburbs increase the city's daytime population to more than one million. The Washington metropolitan area, which includes parts of Maryland, Virginia, and West Virginia, is the country's seventh-largest metropolitan area, with a 2023 population of 6.3 million residents. …