Issaquah, Washington Population 2020

39,789
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Issaquah is a city located in Washington. With a 2020 population of 39,789, it is the 31st largest city in Washington and the 986th largest city in the United States. Issaquah is currently growing at a rate of 0.71% annually and its population has increased by 30.74% since the most recent census, which recorded a population of 30,434 in 2010. Spanning over 13 miles, Issaquah has a population density of 3,280 people per square mile.

The average household income in Issaquah is $137,332 with a poverty rate of 7.77%. The median rental costs in recent years comes to $1,982 per month, and the median house value is $642,300. The median age in Issaquah is 37.6 years, 37 years for males, and 38.6 years for females. For every 100 females there are 91.5 males.

Issaquah Demographics

According to the most recent ACS, the racial composition of Issaquah was:

  • White: 65.69%
  • Asian: 23.15%
  • Two or more races: 5.31%
  • Other race: 3.62%
  • Black or African American: 2.11%
  • Native American: 0.11%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Issaquah, Washington is 39,789, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 39,229.The last official US Census in 2010 recorded the population at 30,434.

Issaquah, Washington Population 2020

Population by Race

Race Population Percentage
White24,94065.69%
Asian8,79023.15%
Two or More Races2,0165.31%
Some Other Race1,3763.62%
Black or African American8002.11%
American Indian and Alaska Native430.11%
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Issaquah Population by Race

Issaquah Population Pyramid 2020

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Issaquah Median Age

37.6


Total

37


Male

38.6


Female

Issaquah Adults

There are 29,060 adults, (4,965 of whom are seniors) in Issaquah.

Issaquah Age Dependency

57.6

Age Dependency Ratio

20.6

Old Age Dependency Ratio

37

Child Dependency Ratio

Issaquah Sex Ratio

Female

19,822

52.21%

Male

18,143

47.79%

Issaquah Population by Age

Issaquah Renter vs Owner Occupied by Household Type

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Issaquah Household Types

Type Owner Renter
Married71.3%28.7%
All61.1%38.9%
Male52.6%47.4%
Non Family51.9%48.1%
Female38.4%61.6%

61.1%

Rate of Home Ownership

Issaquah Households and Families

Type Count Average Size Owned
All15,5252.4361.1
Married8,3193.0171.3
Non Family5,2341.2951.9
Female1,442338.4
Male5302.9952.6

2.96

Average Family Size

2.43

Average Household Size

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Issaquah Households by Type

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Education Attained Count Percentage
Less Than 9th Grade7162.64%
9th to 12th Grade4701.73%
High School Graduate2,5419.36%
Some College4,17415.38%
Associates Degree1,6376.03%
Bachelors Degree10,38038.24%
Graduate Degree7,22726.62%
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Issaquah Educational Attainment by Sex (over 25)

Issaquah Educational Attainment by Race

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Name Total High School Bachelors
White17,58317,23211,120
Asian6,5126,3465,009
Hispanic1,8581,220728
Other Race862418207
Multiple Races653605506
Black588588295
Native American7

The highest rate of high school graduation is among black people with a rate of 100.00%.

The highest rate of bachelors degrees is among multiple races people with a rate of 77.49%.

Issaquah Educational Attainment by Race

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Name Average Male Female
Overall$66,104$96,286$47,734
Less Than High School$25,688$27,411$17,375
High School Grad$36,903$42,926$33,370
Some College$46,345$71,890$35,244
Bachelors Degree$81,991$108,929$57,217
Graduate Degree$97,057$136,875$69,750

$66,104

Average Earnings

$96,286

Average Male

$47,734

Average Female

Issaquah Earnings by Educational Attainment

Issaquah Language by Age

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Issaquah Language

69.49% of Issaquah residents speak only English, while 30.51% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 13.53% of the population.

Issaquah Language

Issaquah Poverty by Race

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Name Total In Poverty Poverty Rate
Hispanic3,4091,09232.03%
White23,0709864.27%
Asian8,7597578.64%
Other1,37656240.84%
Multiple2,010934.63%

7.77%

Overall Poverty Rate

6.79%

Male Poverty Rate

8.68%

Female Poverty Rate

Poverty in Issaquah

The race most likely to be in poverty in Issaquah is Other, with 40.84% below the poverty level.

The race least likely to be in poverty in Issaquah is White, with 4.27% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.08%. Among those working part-time, it was 9.17%, and for those that did not work, the poverty rate was 14.22%.

Issaquah Poverty

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Name Poverty
Less Than High School25.15%
High School7.22%
Some College6.74%
Bachelors or Greater4.24%

Issaquah Poverty Rate by Education

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Name Poverty
Female Unemployed7.91%
Male Unemployed6.62%
Male Employed4.02%
Female Employed3.93%

Issaquah Poverty Rate by Employment Status and Sex

Issaquah Income by Household Type

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Name Median Mean
Households$109,676$137,332
Families$134,514$159,355
Married Families$156,241-
Non Families$78,944$90,604
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Income by Household Type

Issaquah Marital Status

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Marriage Rates

58.9%

Overall Marriage Rate

62.7%

Male Marriage Rate

55.4%

Female Marriage Rate

Issaquah Married by Age and Sex

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Issaquah Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Issaquah Marital Status by Race

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Issaquah Marital Status

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1,703

Number of Veterans

1,478

Male Veterans

225

Female Veterans

War Veterans
Vietnam574
First Gulf War372
Second Gulf War198
Korea180
World War II124

Issaquah Veterans by War

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Age Group Veterans
75+520
55 to 64426
65 to 74375
35 to 54276
18 to 34106

Issaquah Veterans by Age

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Name Veterans % of Total
White1,5027.60%
2 or More10413.52%
Asian731.07%
Hispanic653.07%
Other242.39%

Issaquah Veterans by Race

Issaquah Veterans by Education

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1.79%

Veteran Poverty Rate

27.20%

Veteran Disability Rate

Issaquah Veterans by Education

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71.5%

Labor Force Participation

68.6%

Employment Rate

4%

Unemployment Rate

Issaquah Employment by Age

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Issaquah Employment by Race

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Issaquah Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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35.17%

Born in Washington

73.75%

Native Born

26.25%

Foreign Born

14.25%

Non Citizen

11.99%

Naturalized

Place of Birth

73.75% of Issaquah residents were born in the United States, with 35.17% having been born in Washington. 14.25% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Issaquah Place of Birth

Year Population Growth Annual Growth Rate
202039,7892800.71%
201939,5092800.71%
201839,2291,5334.07%
201737,6963380.90%
201637,3581,3273.68%
201536,0312,0295.97%
201434,0025331.59%
201333,4698622.64%
201232,6076742.11%
201131,9331,3784.51%
201030,55519,34310.55%
200011,2123,4263.71%
19907,7862,2503.47%
19805,5361,2232.53%
19704,3130.00%

Issaquah Population by Year