Issaquah Flag

Issaquah

County:
King County
County Seat:
No
Area (mi²):
12.13
State:
Washington

Issaquah is a city located in King County, Washington. Issaquah has a 2025 population of 39,554 . Issaquah is currently declining at a rate of -0.28% annually and its population has decreased by -1.37% since the most recent census, which recorded a population of 40,103 in 2020.

The average household income in Issaquah is $211,653 with a poverty rate of 5.91%. The median age in Issaquah is 37.2 years: 37.5 years for males, and 36.8 years for females. For every 100 females there are 98.1 males.

39.6K
Total Population
3,261
Density (mi²)
-110 -0.28%
Growth

Issaquah Population

Demographics

Economics and Income Statistics

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)