Issaquah, Washington Population 2020

40,058

Issaquah is a city located in Washington. With a 2020 population of 40,058, it is the 30th largest city in Washington and the 980th largest city in the United States. Issaquah is currently growing at a rate of 0.86% annually and its population has increased by 31.62% since the most recent census, which recorded a population of 30,434 in 2010. Spanning over 13 miles, Issaquah has a population density of 3,303 people per square mile.

The average household income in Issaquah is $128,374 with a poverty rate of 8.09%. The median rental costs in recent years comes to $1,862 per month, and the median house value is $564,400. The median age in Issaquah is 37.6 years, 36.8 years for males, and 38.8 years for females. For every 100 females there are 86.4 males.

Issaquah Demographics

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

  • White: 68.26%
  • Asian: 20.91%
  • Two or more races: 4.62%
  • Other race: 3.54%
  • Black or African American: 2.57%
  • Native American: 0.10%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Issaquah, Washington is 40,058, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 39,378.The last official US Census in 2010 recorded the population at 30,434.

Issaquah, Washington Population 2020

Population by Race

Race Population Percentage
White25,21568.26%
Asian7,72420.91%
Two or More Races1,7054.62%
Some Other Race1,3073.54%
Black or African American9492.57%
American Indian and Alaska Native380.10%

Issaquah Population Pyramid 2020

Issaquah Median Age

37.6


Total

36.8


Male

38.8


Female

Issaquah Adults

There are 28,124 adults, (4,573 of whom are seniors) in Issaquah.

Issaquah Age Dependency

56.8

Age Dependency Ratio

19.4

Old Age Dependency Ratio

37.4

Child Dependency Ratio

Issaquah Sex Ratio

Female

19,815

53.64%

Male

17,123

46.36%

Issaquah Households and Families

Issaquah Renter vs Owner Occupied by Household Type

Issaquah Household Types

Type Owner Renter
Married70.4%29.6%
All59.4%40.6%
Male52.3%47.7%
Non Family52%48%
Female31.9%68.1%

59.4%

Rate of Home Ownership

Type Count Average Size Owned
All15,3332.3959.4
Married7,7403.0570.4
Non Family5,6501.2852
Female1,4843.0331.9
Male4592.9552.3

3

Average Family Size

2.39

Average Household Size

5%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

Issaquah Education

Education Attained Count Percentage
Less Than 9th Grade6852.62%
9th to 12th Grade3871.48%
High School Graduate2,5089.58%
Some College4,15915.88%
Associates Degree1,7226.58%
Bachelors Degree9,86837.68%
Graduate Degree6,85926.19%

Issaquah Educational Attainment by Race

Name Total High School Bachelors
White17,66117,33211,012
Asian5,7005,5524,367
Hispanic1,7591,191697
Other Race794405204
Black589589255
Multiple Races529481443
Native American8

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 83.74%.

Name Average Male Female
Overall$64,019$92,566$48,799
Less Than High School$25,157$26,755$20,023
High School Grad$34,861$41,699$30,642
Some College$45,888$57,692$37,928
Bachelors Degree$80,048$105,467$59,213
Graduate Degree$94,721$134,819$66,994

$64,019

Average Earnings

$92,566

Average Male

$48,799

Average Female

Issaquah Language

Issaquah Language by Age

Issaquah Language

70.63% of Issaquah residents speak only English, while 29.37% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 11.36% of the population.

Issaquah Poverty

Issaquah Poverty by Race

Name Total In Poverty Poverty Rate
White23,2991,2345.30%
Hispanic3,3591,10232.81%
Other1,30757443.92%
Asian7,7013684.78%
Black94919020.02%
Multiple1,699714.18%

8.09%

Overall Poverty Rate

6.02%

Male Poverty Rate

9.89%

Female Poverty Rate

Poverty in Issaquah

The race most likely to be in poverty in Issaquah is Other, with 43.92% below the poverty level.

The race least likely to be in poverty in Issaquah is Multiple, with 4.18% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.55%. Among those working part-time, it was 10.19%, and for those that did not work, the poverty rate was 15.81%.

Name Poverty
Less Than High School25.07%
Some College7.05%
High School6.26%
Bachelors or Greater4.37%
Name Poverty
Male Unemployed9.11%
Female Unemployed7.76%
Female Employed4.02%
Male Employed3.49%

Issaquah Income

Issaquah Income by Household Type

Name Median Mean
Households$101,508$128,374
Families$127,408$153,363
Married Families$150,288-
Non Families$69,934$82,467

Issaquah Marital Status

Issaquah Marital Status

Marriage Rates

56.5%

Overall Marriage Rate

63.2%

Male Marriage Rate

50.9%

Female Marriage Rate

Issaquah Married by Age and Sex

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

Issaquah Veterans

1,514

Number of Veterans

1,282

Male Veterans

232

Female Veterans

War Veterans
Vietnam392
First Gulf War327
Korea190
Second Gulf War180
World War II144
Name Veterans % of Total
White1,3586.85%
Asian661.10%
2 or More649.67%
Hispanic532.57%
Other262.75%

$Issaquah Veterans by Education

2.98%

Veteran Poverty Rate

25.61%

Veteran Disability Rate

Issaquah Employment Status

71.9%

Labor Force Participation

68.7%

Employment Rate

4.4%

Unemployment Rate

Issaquah Place of Birth

Origin of Non-Citizens

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

Origin of Naturalized Citizens

36.24%

Born in Washington

74.04%

Native Born

25.96%

Foreign Born

14.32%

Non Citizen

Place of Birth

74.04% of Issaquah residents were born in the United States, with 36.24% having been born in Washington. 14.32% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Year Population Growth Annual Growth Rate
202040,0583400.86%
201939,7183400.86%
201839,3781,6314.32%
201737,7473400.91%
201637,4071,3323.69%
201536,0752,0315.97%
201434,0445411.61%
201333,5038662.65%
201232,6376852.14%
201131,9521,3974.57%
201030,55519,34310.55%
200011,2123,4263.71%
19907,7862,2503.47%
19805,5361,2232.53%
19704,3130.00%