SeaTac Flag

SeaTac

County:
King County
County Seat:
No
Area (mi²):
10.064
State:
Washington

SeaTac is a city located in King County, Washington. SeaTac has a 2026 population of 34,024. SeaTac is currently growing at a rate of 2.63% annually and its population has increased by 8.4% since the most recent census, which recorded a population of 31,387 in 2020.

34K
Total Population
3,381
Density (mi²)
872 2.63%
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)