Washington, D.C., formally the District of Columbia, is not one of the 50 states, however it is an important territory within the U.S. It is the federal district and capital city of the country, making it one of the most visited cities in the United States. The population of Washington, D.C. is 689,545, which was recorded in 2020.
The City of Washington became the national capital in 1791, and Congress held its first session there in 1800. The area officially became the federal district in 1801, after previously being part of Maryland and Virginia.
The Vital Records Division in Washington, D.C. stores and issues vital records for its citizens, which date back to 1874.