Arlington County Flag

Arlington County

State:
Virginia
County Seat:
Arlington

Arlington County's estimated 2025 population is 244,433 with a growth rate of 1.93% in the past year according to the most recent United States census data. Arlington County is the 8th largest county in Virginia. The 2010 population was 209,319 and has seen a growth of 16.78% since that time.

244,433
Total Population
9,401
Population Density (mi²)
8
Population Rank (State)
4.6K 1.93%
Annual Population Growth

Arlington County Population

Demographics

Economics and Income Statistics

Sources

  1. City and Town Population Totals: 2020-2024
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)