Arlington Flag

Arlington

County Seat:
No
Area (mi²):
9.97
State:
Washington

Arlington is a city located in Snohomish County, Washington. Arlington has a 2026 population of 21,959. Arlington is currently growing at a rate of 2.54% annually and its population has increased by 9.55% since the most recent census, which recorded a population of 20,045 in 2020.

22K
Total Population
2,203
Density (mi²)
543 2.54%
Growth

Nearby Cities

Sources

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