Arlington County Flag

Arlington County

State:
Virginia
County Seat:
Arlington

Arlington County's estimated 2025 population is 235,130 with a growth rate of 0.21% 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 12.33% since that time.

235,130
Total Population
9,043
Population Density (mi²)
8
Population Rank (State)
484 0.21%
Annual Population Growth

Arlington County Population

Demographics

Economics and Income Statistics