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King County, Washington Population 2021
King County, Washington's estimated population is 2,301,620 with a growth rate of 1.07% in the past year according to the most recent United States census data. King County, Washington is the 2nd largest county inWashington. The 2010 Population was 1,938,350 and has seen a growth of 18.74% since this time.
Note: 2020 and 2021 data is projected
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2021 | 2,301,620 | 24,420 | 1.07% |
| 2020 | 2,277,200 | 24,420 | 1.08% |
| 2019 | 2,252,780 | 24,420 | 1.10% |
| 2018 | 2,228,360 | 24,520 | 1.11% |
| 2017 | 2,203,840 | 37,490 | 1.73% |
| 2016 | 2,166,350 | 40,170 | 1.89% |
| 2015 | 2,126,180 | 40,960 | 1.96% |
| 2014 | 2,085,220 | 38,000 | 1.86% |
| 2013 | 2,047,220 | 36,020 | 1.79% |
| 2012 | 2,011,200 | 37,000 | 1.87% |
| 2011 | 1,974,200 | 35,850 | 1.85% |
| 2010 | 1,938,350 | 431,030 | 28.60% |
| 1990 | 1,507,320 | 237,570 | 18.71% |
| 1980 | 1,269,750 | 113,120 | 9.78% |
| 1970 | 1,156,630 | 221,616 | 23.70% |
| 1960 | 935,014 | 202,022 | 27.56% |
| 1950 | 732,992 | 228,012 | 45.15% |
| 1940 | 504,980 | 41,463 | 8.95% |
| 1930 | 463,517 | 74,244 | 19.07% |
| 1920 | 389,273 | 104,635 | 36.76% |
| 1910 | 284,638 | 174,585 | 158.64% |
| 1900 | 110,053 | 46,064 | 71.99% |
| 1890 | 63,989 | 57,079 | 826.03% |
| 1880 | 6,910 | 4,790 | 225.94% |
| 1870 | 2,120 | 1,818 | 601.99% |
| 1860 | 302 | 0.00% |
2021 Growth Rate
1.07% (24,420)
County Website
State
Founded
December 22, 1852
County Seat
Lat./Long.
2010 Population
1,938,350
Growth Since 2010
18.74% (363,270)
King County, Washington Population Growth
| Race | Population | Percentage |
|---|---|---|
| White | 1,404,324 | 63.96% |
| Asian | 386,404 | 17.60% |
| Black or African American | 141,790 | 6.46% |
| Two or More Races | 140,606 | 6.40% |
| Some Other Race | 92,377 | 4.21% |
| Native Hawaiian and Other Pacific Islander | 16,944 | 0.77% |
| American Indian and Alaska Native | 13,057 | 0.59% |
King County, Washington Population by Race
King County, Washington Population Pyramid $2021
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King County, Washington Population by Age
King County, Washington Households and Families
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 882,028 | 2.45 | 56.9 |
| Married | 421,900 | 3.14 | 75.1 |
| Non Family | 352,465 | 1.39 | 37.9 |
| Female | 72,807 | 3.18 | 47.5 |
| Male | 34,856 | 3.2 | 49.3 |
3.06
Average Family Size
2.45
Average Household Size
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King County, Washington Households by Type
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 52,663 | 3.36% |
| 9th to 12th Grade | 55,272 | 3.53% |
| High School Graduate | 234,991 | 15.00% |
| Some College | 277,558 | 17.71% |
| Associates Degree | 123,989 | 7.91% |
| Bachelors Degree | 491,961 | 31.39% |
| Graduate Degree | 330,654 | 21.10% |
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King County, Washington Educational Attainment by Sex (over 25)
King County, Washington Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 1,003,700 | 974,013 | 565,458 |
| Asian | 282,024 | 252,034 | 171,258 |
| Hispanic | 118,285 | 85,757 | 31,589 |
| Black | 89,948 | 79,353 | 25,220 |
| 2+ Races | 64,159 | 60,129 | 29,161 |
| Other Race | 52,153 | 32,245 | 8,150 |
| Islander | 10,399 | 9,187 | 1,342 |
| Native American | 8,797 | 7,077 | 1,721 |
The highest rate of high school graduation is among white people with a rate of 97.04%.
The highest rate of bachelors degrees is among asian people with a rate of 60.72%.
King County, Washington Educational Attainment by Race
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$57,130
Average Earnings
$69,014
Average Male
$46,846
Average Female
King County, Washington Earnings by Educational Attainment
King County, Washington Language by Age
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King County, Washington Language
72.22% of King County, Washington residents speak only English, while 27.78% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 11.94% of the population.
King County, Washington Language
King County, Washington Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 1,293,000 | 81,042 | 6.27% |
| Black | 139,201 | 33,534 | 24.09% |
| Asian | 381,217 | 33,116 | 8.69% |
| Hispanic | 209,087 | 30,076 | 14.38% |
| Other | 91,372 | 14,770 | 16.16% |
| Multiple | 137,435 | 14,759 | 10.74% |
| Native | 12,514 | 2,389 | 19.09% |
| Islander | 16,680 | 2,258 | 13.54% |
8.94%
Overall Poverty Rate
8.29%
Male Poverty Rate
9.60%
Female Poverty Rate
Poverty in King County, Washington
The race most likely to be in poverty in King County, Washington is Black, with 24.09% below the poverty level.
The race least likely to be in poverty in King County, Washington is White, with 6.27% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 1.10%. Among those working part-time, it was 13.16%, and for those that did not work, the poverty rate was 17.98%.
King County, Washington Poverty
King County, Washington Poverty Rate by Education
King County, Washington Marital Status
Marriage Rates
50.3%
Overall Marriage Rate
51.0%
Male Marriage Rate
49.7%
Female Marriage Rate
King County, Washington Married by Age and Sex
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King County, Washington Marriage
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.
King County, Washington Marital Status by Race
King County, Washington Marital Status
King County, Washington Veterans by War
King County, Washington Veterans by Age
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| Name | Veterans | % of Total |
|---|---|---|
| White | 81,176 | 7.00% |
| Black | 7,358 | 7.09% |
| Asian | 5,412 | 1.70% |
| Hispanic | 4,577 | 3.24% |
| 2+ Races | 3,533 | 4.45% |
| Other Race | 1,382 | 2.19% |
| Islander | 946 | 7.81% |
| Native American | 774 | 7.69% |
King County, Washington Veterans by Race
King County, Washington Veterans by Education
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6.06%
Veteran Poverty Rate
26.12%
Veteran Disability Rate
King County, Washington Veterans by Education
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70.3%
Labor Force Participation
67.2%
Employment Rate
4.2%
Unemployment Rate
King County, Washington Employment by Age
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King County, Washington Employment by Race
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King County, Washington 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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39.51%
Born in King County, Washington
76.88%
Native Born
23.12%
Foreign Born
12.21%
Non Citizen
10.91%
Naturalized
Place of Birth
76.88% of King County, Washington residents were born in the United States, with 39.51% having been born in Washington. 12.21% 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
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990