Washington, D.C. | History, Map, Population, & Facts (2024)

Washington, D.C., city and capital of the United States of America. It is coextensive with the District of Columbia (the city is often referred to as simply D.C.) and is located on the northern shore of the Potomac River at the river’s navigation head—that is, the transshipment point between waterway and land transport. The state of Maryland borders the District of Columbia to the north, east, and west, and the state of Virginia borders the District on the southern shore of the Potomac River.

In 1790 the U.S. Congress established a 100-square-mile (260-square-km) territory to serve as the permanent seat of the federal government. (The territory was later named the District of Columbia, within which the city of Washington was built.) The location for the new territory was centralized among the Eastern Seaboard states and was about 90 miles (145 km) inland from the Atlantic Ocean on land ceded by Maryland and Virginia. In the mid-19th century the land south of the Potomac River that had been ceded by Virginia was returned to the state, reducing the District to its present-day size.

After the American Civil War (1861–65), the city of Washington expanded beyond its originally planned boundaries and became legally indistinguishable from the District of Columbia. Washington, D.C., remains a territory, not a state, and since 1974 it has been governed by a locally elected mayor and city council over which Congress retains the power of veto. The Washington metropolitan area covers nearly 4,000 square miles (10,360 square km) and encompasses 10 counties, 5 in Maryland (Montgomery, Prince George’s, Frederick, Charles, and Calvert) and 5 in Virginia (Arlington, Fairfax, Loudoun, Stafford, and Prince William). Area District, 68 square miles (176 square km). Pop. (2000) 572,059; Washington-Arlington-Alexandria Metro Division, 3,727,565; Washington-Arlington-Alexandria Metro Area, 4,796,183; (2010) 601,723; Washington-Arlington-Alexandria Metro Division, 4,377,088; Washington-Arlington-Alexandria Metro Area, 5,582,170.

Character of the city

Washington is an extraordinary city, one with multiple personalities: a working federal city, an international metropolis, a picturesque tourist destination, an unmatched treasury of the country’s history and artifacts, and a cosmopolitan centre that retains a neighbourly small-town ambience. The role Washington plays as the capital of the United States often overshadows its lively local history and its complex political, economic, and social issues. About half the land in Washington is owned by the U.S. government, which pays no taxes on it. Several hundred thousand people in the D.C. metropolitan area work for the federal government.

During the last half of the 20th century, “suburban flight” of the middle class contributed to the city’s loss of more than one-fourth of its population. As new jobs, especially those in the high-technology industries, were created in Maryland and Virginia, the population of the suburbs increased as much as 50 percent per decade. By the first decade of the 21st century, however, Washington’s population began to increase as younger workers moved into revitalized city neighbourhoods. Despite these shifts in population, the economies of the District and those of nearby Maryland and Virginia remain interdependent.

Landscape