District of Columbia county map

District of Columbia population and land area

District of Columbia had 702,250 residents in the Census Vintage 2024 estimates, the sum of its county-equivalent. That ranks 49th of the 50 states and DC. Its 61 square miles of land rank 51st. District of Columbia averages 11,487.8 people per square mile of land, 119.3 times the national figure of 96.3. By density it ranks 1st.

District of Columbia county-equivalent by population, density and income

Each shape is shaded by quintile, darker for higher values. Switch the measure above the map. Select a shape to open that county's page. The pin marks the capital, Washington.

Towns and cities in District of Columbia

The Census Vintage 2024 subcounty estimates list 1 incorporated places in District of Columbia with 1,000 or more residents, holding 702,250 people together, or 100% of the state total. 1 of them have 5,000 or more. Among places of 5,000+, Washington grew fastest from July 2020 to July 2024, by 4.7%.

Washington, the capital

100.0% of District of Columbia's place population, 702,250 of 702,250 people, lives in places within 100 miles of Washington. That ranks 2nd of 51 for how central the capital is.

See all states in the capital radius ranking and the most remote towns ranking. Sunrise and sunset times for Washington, month by month, are on the Washington daylight page.

States bordering District of Columbia

District of Columbia borders 2 states or districts. The nearest neighboring capital is Annapolis, 30 miles E of Washington in a straight line.

UTM zones in District of Columbia

The internal points of District of Columbia's county-equivalent fall in UTM zone 18. Zones are 6 degrees of longitude wide, numbered from 180° W: zone = floor((longitude + 180) / 6) + 1.

All 1 county-equivalent in District of Columbia

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