District of Columbia, District of Columbia

District of Columbia is a county in District of Columbia with an estimated population of 678,972 in 2023. 1 cities, towns and Census places in it are indexed here.

Largest places in District of Columbia

About District of Columbia

District of Columbia is one of the counties of District of Columbia. County governments in District of Columbia handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.