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 2026 population of 39,444. Issaquah is currently declining at a rate of -0.28% annually and its population has decreased by -1.64% since the most recent census, which recorded a population of 40,103 in 2020.

The median household income in Issaquah is $154,669 with a poverty rate of 5.2%. The median age in Issaquah is 37.5 years: 37.7 years for males, and 37.3 years for females. For every 100 females there are 94.0 males.

39.4K
Total Population
3,252
Density (mi²)
-110 -0.28%
Growth

Issaquah Population

Issaquah Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202639,444-110-0.28%
202539,554-110-0.28%
202439,6643260.83%
202339,338-6-0.02%
202239,344-208-0.53%
202139,552-551-1.37%
202040,103300.07%
201939,4832230.57%
201839,2601,5154.01%
201737,7453340.89%
201637,4111,3373.71%
201536,0742,0355.98%
201434,0395361.6%
201333,5038672.66%
201232,6366842.14%
201131,9521,4004.58%
201030,5521180.39%
200011,2123,42644%
19907,7862,25040.64%
19805,5361,22328.36%
19704,31300%

Median Age

Overall: 37.5 years
Female: 37.3 years
Male: 37.7 years

Issaquah Adults

There are 31,373 adults, (5,744 of whom are seniors) in Issaquah.

Sex Ratio

Female: 20,409 (51.5%)
Male: 19,182 (48.5%)

Demographics

The racial composition of Issaquah includes 57.35% White, 26.79% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White22,70757.35%
Asian10,60526.79%
Two or more races4,02810.17%
Other race1,0802.73%
Black or African American8992.27%
Native American1390.35%
Native Hawaiian or Pacific Islander1330.34%
Race
Population ↓
Percentage (of total)
Two or more races8312.1%
White6371.61%
Other race6311.59%
Asian670.17%
Native American660.17%
Black or African American120.03%
Race
Population ↓
Percentage (of total)
White22,07055.74%
Asian10,53826.62%
Two or more races3,1978.08%
Black or African American8872.24%
Other race4491.13%
Native Hawaiian or Pacific Islander1330.34%
Native American730.18%

Issaquah Marital Status

Economics and Income Statistics

Issaquah 's average per capita income is $105,859. Household income levels show a median of $154,669. The poverty rate stands at 5.2%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$214,421-
Families$195,293$253,284
Households$154,669$221,177
Non Families$92,795$155,663

$105,859

Average Income

$154,669

Median Household Income

5.2%

Poverty Rate

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)