City · Washington
Issaquah, Washington
Issaquah, city, in King County, Washington. Issaquah had 39,423 residents on July 1, 2025 by the Census Bureau's estimate, down 1.6% since 2020; the 2020 Census counted 40,051 and the ACS 2020-2024 5-year estimates put it at 39,591 (±52). GEOID 5333805.
Residents, July 2025 estimate
39,423
Census Bureau estimate (no margin published)
2020 Census count: 40,051 · ACS 2020-2024: 39,591 ±52
Median household income
$154,669
±$13,820 (90% margin)
Washington: $98,141
Median home value
$963,000
±$50,339 (90% margin)
Washington: $564,600
Median gross rent
$2,590
±$115 (90% margin)
Washington: $1,760
Where is Issaquah and what county is it in?
Issaquah is a city in King County, Washington. It covers 12.1 square miles of land, 3,302 residents per square mile in 2020.
Issaquah is in the Seattle-Tacoma-Bellevue, WA metropolitan statistical area, which takes in 3 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Issaquah, and is it growing?
The Census Bureau estimates that 39,423 people lived in Issaquah on July 1, 2025, down 1.6% since 2020, while Washington grew 3.8%. The 2020 Census counted 40,051 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 39,591 (±52).
| Measure | Issaquah | King County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 39,591 ±52 | 2,287,171 | +1,626 |
| Households | 16,664 ±508 | 941,054 | +1,139 |
| Average household size | 2.35 ±0.07 | 2.39 | no clear change |
| Housing units | 17,542 ±514 | 1,003,284 | +1,383 |
Issaquah's population since 2000
From 11,212 in 2000 to 39,423 in 2025: up 251.6%. The 2000, 2010 and 2020 figures are census counts, each for Issaquah as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Issaquah?
The median resident of Issaquah is 37.5 years old; 20.8% are under 18 and 14.5% are 65 or older. The largest group is non-Hispanic white residents at 55.7%, then non-Hispanic Asian residents at 26.6%. 28.3% of residents were born outside the United States.
| Measure | Issaquah | King County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 37.5 ±0.7 | 37.4 | no clear change |
| Under 18 years | 20.8% ±1.3 pts | 19.5% | – |
| 65 years and over | 14.5% ±1.1 pts | 14.0% | – |
| Male | 48.5% ±1.6 pts | 50.7% | – |
| Hispanic or Latino (any race) | 5.7% ±1.4 pts | 11.0% | −3.3 pts |
| White alone, not Hispanic | 55.7% ±3.1 pts | 52.9% | −5.7 pts |
| Black or African American alone, not Hispanic | 2.2% ±1.4 pts | 6.4% | – |
| Asian alone, not Hispanic | 26.6% ±3.4 pts | 20.5% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.2 pts | 0.4% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.3% ±0.4 pts | 0.7% | – |
| Two or more races, not Hispanic | 8.1% ±1.6 pts | 7.3% | – |
| Some other race alone, not Hispanic | 1.1% ±0.7 pts | 0.6% | – |
| Born outside the United States | 28.3% ±2.9 pts | 25.8% | no clear change |
| Speak a language other than English at home (age 5+) | 31.2% ±2.8 pts | 31.1% | – |
| Civilian veterans (age 18+) | 5.3% ±1.0 pts | 4.5% | – |
| With a disability | 8.0% ±1.3 pts | 10.3% | – |
| No health insurance coverage | 1.7% ±0.6 pts | 5.2% | −1.8 pts |
| High school graduate or higher (age 25+) | 98.0% ±1.1 pts | 93.8% | – |
| Bachelor's degree or higher (age 25+) | 70.5% ±2.9 pts | 56.7% | +5.6 pts |
| Graduate or professional degree (age 25+) | 31.7% ±2.8 pts | 24.2% | – |
| Lived in the same house a year earlier | 81.9% ±2.5 pts | 83.3% | – |
| Moved from another state in the past year | 4.8% ±1.4 pts | 3.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Issaquah earn?
Half of Issaquah's 16,664 households earn less than $154,669 a year (±$13,820), against $124,746 in King County and $98,141 in Washington. In 2015-2019 the median was $134,978 in 2024 dollars, so it rose by $19,691 after inflation. 5.2% of residents live below the poverty line.
| Measure | Issaquah | King County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $154,669 ±$13,820 | $124,746 | +$19,691 |
| Mean household income | $221,177 ±$19,002 | $176,799 | – |
| Per capita income | $95,118 ±$7,845 | $74,100 | +$24,892 |
| People below the poverty line | 5.2% ±1.5 pts | 8.6% | no clear change |
| Children under 18 below the poverty line | 5.3% ±3.2 pts | 9.7% | no clear change |
| Households receiving SNAP | 4.3% ±1.4 pts | 8.2% | – |
| Households with a computer | 99.0% ±0.7 pts | 98.1% | – |
| Households with a broadband subscription | 96.8% ±1.1 pts | 95.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Issaquah?
Owners occupy 57.4% of Issaquah's occupied homes and renters 42.6%. The median owner-occupied home is valued at $963,000 by its owner (±$50,339). The median renter pays $2,590 a month including utilities, and 32.0% of renters pay 35% or more of their income on rent.
| Measure | Issaquah | King County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $963,000 ±$50,339 | $859,900 | +$172,525 |
| Median gross rent | $2,590 ±$115 | $2,092 | no clear change |
| Renters paying 35% or more of income on rent | 32.0% ±5.9 pts | 37.5% | no clear change |
| Median monthly owner costs, with a mortgage | $3,634 ±$218 | $3,273 | – |
| Owner-occupied homes | 57.4% ±3.4 pts | 55.4% | no clear change |
| Renter-occupied homes | 42.6% ±3.4 pts | 44.6% | – |
| Housing units | 17,542 ±514 | 1,003,284 | +1,383 |
| Homeowner vacancy rate | 0.8% ±1.3 pts | 0.7% | – |
| Rental vacancy rate | 3.7% ±2.1 pts | 5.3% | – |
| Single-family detached homes | 35.0% ±3.0 pts | 50.0% | – |
| Mobile homes | 0.0% ±0.2 pts | 1.4% | – |
| Built 2020 or later | 1.8% ±0.8 pts | 2.1% | – |
| Built 2010 to 2019 | 22.7% ±3.0 pts | 14.2% | – |
| Built 1939 or earlier | 1.6% ±0.9 pts | 10.9% | – |
| Households with no vehicle | 6.5% ±1.7 pts | 11.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Issaquah building?
Builders took permits for 28 new housing units in Issaquah in 2025 (10 in single-family houses), 0.7 per 1,000 residents against 4.4 across Washington.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Issaquah work and get to work?
49.3% of Issaquah's workers drive alone and 38.8% work from home. The average trip to work takes 25.3 minutes. The unemployment rate in 2020-2024 averaged 3.3%.
| Measure | Issaquah | King County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 71.5% ±1.8 pts | 69.9% | – |
| Unemployment rate | 3.3% ±0.9 pts | 4.8% | no clear change |
| Drove alone to work | 49.3% ±3.5 pts | 50.4% | – |
| Carpooled | 5.7% ±1.4 pts | 7.0% | – |
| Public transportation | 3.3% ±1.1 pts | 6.8% | – |
| Walked | 1.6% ±0.7 pts | 4.3% | – |
| Worked from home | 38.8% ±3.5 pts | 29.2% | +30.8 pts |
| Mean travel time to work | 25.3 min ±1.8 | 27.6 min | −4.7 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Issaquah?
7 census tracts lie mostly in Issaquah, and 3 more reach into it (2020 census blocks). Their median household incomes run from $121,685 (Tract 321.03) to $250,000 or more (Tract 322.21).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 322.20King County | 8,777 | $169,917 |
| Tract 321.03King County | 5,934 | $121,685 |
| Tract 321.04King County | 6,253 | $140,219 |
| Tract 322.19King County | 4,240 | $186,101 |
| Tract 234.04King County | 3,575 | $193,750 |
| Tract 250.06King County | 6,731 | $186,278 |
| Tract 322.21King County | 6,173 | $250,000 or more |
| Tract 250.07King County | 4,791 | $140,685 |
| Tract 322.18King County | 6,050 | $170,956 |
| Tract 321.02King County | 4,973 | $165,341 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Issaquah) · Census block assignment files
How does Issaquah compare with other places in Washington?
By the Census Bureau's July 2025 estimates, Issaquah is the 1,054th-most populous of the 19,476 U.S. incorporated places that have one and the 32nd-most populous of 281 in Washington.
Issaquah ranks 44th of 387 places in Washington with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 32nd | 281 |
| Growth 2020-2025 (PEP) | 183rd | 203 |
| Residents per square mile | 71st | 394 |
| Median household income | 44th | 387 |
| Per capita income | 13th | 393 |
| Median home value | 25th | 384 |
| Median gross rent | 22nd | 351 |
| Poverty rate | 236th | 281 |
| Bachelor's degree or higher | 12th | 382 |
| Median age | 247th | 394 |
| Owner-occupied share | 317th | 388 |
| Work from home | 12th | 307 |
| Travel time to work | 231st | 394 |
Issaquah's figures with every place in Washington (CSV)
Every place in Washington, sortable · Compare Issaquah with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Issaquah?
4 of the 57 figures for Issaquah on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Issaquah are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Issaquah.