Des Moines Flag

Des Moines

County:
King County
County Seat:
No
Area (mi²):
6.414
State:
Washington

Des Moines is a city located in King County, Washington. Des Moines has a 2026 population of 33,207. Des Moines is currently growing at a rate of 1.18% annually and its population has increased by 0.97% since the most recent census, which recorded a population of 32,889 in 2020.

33.2K
Total Population
5,178
Density (mi²)
387 1.18%
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)