District of Columbia, federal
district (2020 pop. 689,545), 69 sq mi (179 sq km), on the east bank of the
Potomac River, coextensive with the city of Washington, D.C. (the capital of the
United States). The District was established by congressional acts of 1790
and 1791 and selected by George Washington. It was originally a 10-mi
(16.1-km) square (100 sq mi/259 sq km), with Maryland and Virginia granting
land on each side of the river, including Georgetown, Md., and Alexandria, Va. The “Federal
City” was laid out at its center. Alexandria was returned to Virginia
in 1847. The city continued to grow on the east bank of the river and in
1878, when Georgetown became a part of Washington (although it continued to
operate as a separate city until 1895), the city of Washington and the
District of Columbia became one and the same. Although
“Washington” is the name known throughout the world, the city
is more commonly called “the District” by its own
residents.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2024, Columbia University Press. All rights reserved.
See more Encyclopedia articles on: U.S. Political Geography
