District of Columbia Counties by Population (2026)
2026 Pop.
732.1K
Top 5 Most Populous Counties
732,102
1 Counties
| County | 2026 Pop. ↓ | Area (mi²) | Density | Change (2020) |
|---|---|---|---|---|
| District of Columbia | 732,102 | 61 | 12,002 | 9.12% |
Overview of District of Columbia Counties
There are 1 counties in District of Columbia.
District of Columbia is the largest county in the state, with a population of 732,102. The most recent census shows that its population has increased by 0.09% since the previous census.
District of Columbia Counties with Rapid Growth
District of Columbia , with its sizeable population of 732,102, has shown the largest population growth, with an increase of 0.1% since the last census.
Sources
- US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
- American Community Survey (2009 - 2013)
- Census QuickFacts
- Historical Populations of States and Counties (1790 - 1990)