King County, Washington Population 2023

2,371,204

King County, Washington's estimated 2023 population is 2,371,204 with a growth rate of 1.45% in the past year according to the most recent United States census data. King County, Washington is the largest county in Washington. The 2010 population was 1,931,249 and has seen a growth of 22.78% since that time.

Note: data after 2021 is projected based on recent change

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Year
Population
Growth
Growth Rate
20101,931,249
20111,965,09233,8431.75%
20121,998,93533,8431.72%
20132,032,77833,8431.69%
20142,066,62133,8431.66%
20152,100,46433,8431.64%
20162,134,30733,8431.61%
20172,168,15033,8431.59%
20182,201,99333,8431.56%
20192,235,83633,8431.54%
20202,269,67533,8391.51%
20212,303,51833,8431.49%
20222,337,36133,8431.47%
20232,371,20433,8431.45%
showing: 14 rows
2023 Growth Rate
1.45% (33,843)
County Website
King County
Founded
December 22, 1852
County Seat
Seattle
2010 Population
1,931,249
Growth Since 2010
22.78% (439,955)

King County, Washington Population 2023

Population by Race

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Race
Population
Percentage (of total)
White1,356,26560.52%
Asian420,43418.76%
Two or more races191,2248.53%
Black or African American144,4746.45%
Other race98,4224.39%
Native Hawaiian or Pacific Islander16,3700.73%
Native American13,6870.61%
showing: 7 rows

White

Asian

Two or more races

Black or African American

Other race

Native Hawaiian or Pacific Islander

Native American

King County, Washington Population by Race

King County, Washington Population Pyramid 2023

King County, Washington Median Age

37.1

Total

36.5

Male

37.8

Female

King County, Washington Adults

There are 1,788,386 adults, (294,552 of whom are seniors) in King County, Washington.

King County, Washington Age Dependency

50

Age Dependency Ratio

19.7

Old Age Dependency Ratio

30.3

Child Dependency Ratio

King County, Washington Sex Ratio

Female1,108,65249.47%
Male1,132,22450.53%

King County, Washington Population by Age

King County, Washington Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All902,3082.4456.643.4
Married427,4983.1675.424.6
Non Family365,8761.3836.963.1
Female71,8493.2249.250.8
Male37,0853.2248.551.5
showing: 5 rows

3.07

Average Family Size

2.44

Average Household Size

56.6%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

King County, Washington Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

King County, Washington Educational Attainment by Sex (over 25)

King County, Washington Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 87.64%.

The highest rate of bachelors degrees is among asian people with a rate of 55.27%.

King County, Washington Educational Attainment by Race

All

Male

Female

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$64,025

Average Earnings

$75,898

Average Male

$52,971

Average Female

King County, Washington Earnings by Educational Attainment

King County, Washington Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

King County, Washington Language

71.11% of King County, Washington residents speak only English, while 28.89% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 16.65% of the population.

King County, Washington Language

King County, Washington Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White1,263,55577,4096.13%
Asian414,79133,0227.96%
Hispanic220,77330,55213.84%
Black141,95627,96119.7%
Multiple187,98320,22710.76%
Other97,18814,88015.31%
Native13,0782,23617.1%
Islander16,1341,3648.45%
showing: 8 rows

8.43%

Overall Poverty Rate

7.64%

Male Poverty Rate

9.23%

Female Poverty Rate

Poverty in King County, Washington

The race most likely to be in poverty in King County, Washington is Black, with 19.7% below the poverty level.

The race least likely to be in poverty in King County, Washington is White, with 6.13% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.1%. Among those working part-time, it was 12.13%, and for those that did not work, the poverty rate was 17.17%.

King County, Washington Poverty

rate

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Rate
Poverty
Less Than 9th Grade20.64%
High School11.83%
Some College8.6%
Bachelors or Greater3.51%
showing: 4 rows

King County, Washington Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed24.56%
Male Unemployed23.66%
Female Employed4.74%
Male Employed3.2%
showing: 4 rows

King County, Washington Poverty Rate by Employment Status and Sex

King County, Washington Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

King County, Washington Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

49.8%

Overall Marriage Rate

50.5%

Male Marriage Rate

49.1%

Female Marriage Rate

King County, Washington Married by Age and Sex

male

female

King County, Washington Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

King County, Washington Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

King County, Washington Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

91,729

Number of Veterans

83,609

Male Veterans

8,120

Female Veterans

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King County, Washington Veterans by War

count

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King County, Washington Veterans by Age

count

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King County, Washington Veterans by Race

King County, Washington Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.54%

Veteran Poverty Rate

27.79%

Veteran Disability Rate

King County, Washington Veterans by Education

LaborForceParticipation

70.2%

Labor Force Participation

66.9%

Employment Rate

4.6%

Unemployment Rate

King County, Washington Employment by Age

LaborForceParticipation

King County, Washington Employment by Race

LaborForceParticipation

King County, Washington Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

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

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

40.05%

Born in King County, Washington

76.88%

Native Born

24.49%

Foreign Born

12.95%

Non Citizen

11.54%

Naturalized

Place of Birth

76.88% of King County, Washington residents were born in the United States, with 40.05% having been born in Washington. 12.95% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

King County, Washington Place of Birth

Sources