King County, Washington

62 cities & places have their primary county here.

Population: 2,262,713
Median household income: $122,148
Median home value: $811,200

King County is a county in Washington with a population of 2,262,713. 62 cities and places have their primary county here. At $122,148, its median household income sits above Washington's $94,952.

Between 2019 and 2023, King County's population grew 3.1% from 2,195,502 to 2,262,713, while its median household income rose 28.6% from $94,974 to $122,148.

The largest age group is 25 to 34, 18.2% of residents. White (non-Hispanic) residents are the largest group, 54.3% of the population.

Demographics

ACS 2019–2023

Population: 2,262,713
Median age: 37.3 yrs
Median household income: $122,148
Median home value: $811,200
Median gross rent: $2,035
Housing units: 988,330
Homeownership rate: 56.1%
Bachelor's degree or higher: 55.9%
Unemployment rate: 4.6%

Trends

ACS 5-year · 2019–2023

Population

2,195,5022,262,713

Median household income

$94,974$122,148

Median home value

$549,200$811,200

Median gross rent

$1,606$2,035

Year	Population	Median household income	Median home value	Median gross rent
2019	2,195,502	$94,974	$549,200	$1,606
2020	2,225,064	$99,158	$601,100	$1,695
2021	2,240,876	$106,326	$651,900	$1,801
2022	2,254,371	$116,340	$761,500	$1,950
2023	2,262,713	$122,148	$811,200	$2,035

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 55.3%

5 to 1714.4%

18 to 248.0%

25 to 3418.2%

35 to 4415.8%

45 to 5413.0%

55 to 6411.5%

65 to 748.3%

75 and over5.5%

	Count	Share
Under 5	120,412	5.3%
5 to 17	326,709	14.4%
18 to 24	181,119	8.0%
25 to 34	412,215	18.2%
35 to 44	358,298	15.8%
45 to 54	293,485	13.0%
55 to 64	259,107	11.5%
65 to 74	187,744	8.3%
75 and over	123,624	5.5%

Race & ethnicity

	Count	Share
White (non-Hispanic)	1,229,507	54.3%
Black or African American	144,810	6.4%
American Indian & Alaska Native	9,218	0.4%
Asian	447,125	19.8%
Native Hawaiian & Pacific Islander	16,674	0.7%
Some other race	13,358	0.6%
Two or more races	156,701	6.9%
Hispanic or Latino (any race)	245,320	10.8%

Educational attainment (age 25+)

No high school diploma6.2%

High school graduate14.3%

Some college or associate's23.6%

Bachelor's degree32.4%

Graduate or professional degree23.5%

	Count	Share
No high school diploma	101,640	6.2%
High school graduate	233,689	14.3%
Some college or associate's	384,985	23.6%
Bachelor's degree	529,842	32.4%
Graduate or professional degree	384,317	23.5%

Commute to work

Mean travel time to work: 28 min

Drove alone51.8%

Carpooled7.2%

Public transit8.0%

Walked4.3%

Bicycle1.1%

Worked from home26.2%

Other means1.3%

How workers get to work

	Count	Share
Drove alone	631,878	51.8%
Carpooled	88,155	7.2%
Public transit	97,519	8.0%
Walked	52,360	4.3%
Bicycle	13,759	1.1%
Worked from home	319,205	26.2%
Other means	15,983	1.3%

Travel time

	Count	Share
Under 15 min	167,737	18.6%
15 to 29 min	332,898	37.0%
30 to 44 min	233,510	26.0%
45 to 59 min	89,749	10.0%
60+ min	75,760	8.4%

Households

Average household size: 2.39
Poverty rate: 8.4% (186,954 of 2,231,897)

	Count	Share
Family households	540,558	58.3%
Nonfamily households	387,259	41.7%

Housing

Median year structure built: 1983

Occupancy

	Count	Share
Occupied	927,817	93.9%
Vacant	60,513	6.1%

Tenure (of occupied units)

	Count	Share
Owner-occupied	520,391	56.1%
Renter-occupied	407,426	43.9%

1-unit, detached50.9%

1-unit, attached5.4%

2 to 4 units5.5%

5 to 19 units12.3%

20 or more units24.3%

Mobile home & other1.5%

Units in structure

	Count	Share
1-unit, detached	503,328	50.9%
1-unit, attached	53,088	5.4%
2 to 4 units	54,328	5.5%
5 to 19 units	122,016	12.3%
20 or more units	240,302	24.3%
Mobile home & other	15,268	1.5%

Geography

County GEOID: 53033
State: Washington
Land area: 2,116 sq mi
Water area: 192 sq mi
Center point: 47.4906, -121.8340