US Census Data

King County vs Snohomish County

A side-by-side comparison of King County and Snohomish County: population, income, housing, and more.

King County and Snohomish County are counties in Washington. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

King County has the higher population (2,262,713 vs 834,648 in Snohomish County). King County has the higher median household income ($122,148 vs $107,982 in Snohomish County). King County has the higher median home value ($811,200 vs $644,600 in Snohomish County).

Population, income & housing

King CountySnohomish County
Population2,262,713834,648
Median age37.3 yrs38.4 yrs
Median household income$122,148$107,982
Median home value$811,200$644,600
Median gross rent$2,035$1,866
Housing units988,330327,893
Homeownership rate56.1%68.4%
Bachelor's degree or higher55.9%36.8%
Unemployment rate4.6%4.4%

Trends (ACS 5-year, 2019–2023)

King CountySnohomish County
Population2,195,502 → 2,262,713 (+3.1%)798,808 → 834,648 (+4.5%)
Median household income$94,974 → $122,148 (+28.6%)$86,691 → $107,982 (+24.6%)
Median home value$549,200 → $811,200 (+47.7%)$403,000 → $644,600 (+60.0%)
Median gross rent$1,606 → $2,035 (+26.7%)$1,438 → $1,866 (+29.8%)

King County

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

Snohomish County

Population
798,808834,648
Median household income
$86,691$107,982
Median home value
$403,000$644,600
Median gross rent
$1,438$1,866

Age & race/ethnicity

Age distribution (share)

King CountySnohomish County
Under 55.3%6.1%
5 to 1714.4%16.3%
18 to 248.0%7.3%
25 to 3418.2%14.8%
35 to 4415.8%15.3%
45 to 5413.0%12.9%
55 to 6411.5%12.9%
65 to 748.3%9.1%
75 and over5.5%5.3%

Race & ethnicity (share)

King CountySnohomish County
White (non-Hispanic)54.3%63.6%
Black or African American6.4%3.5%
American Indian & Alaska Native0.4%0.7%
Asian19.8%12.8%
Native Hawaiian & Pacific Islander0.7%0.5%
Some other race0.6%0.6%
Two or more races6.9%6.4%
Hispanic or Latino10.8%11.8%

Educational attainment (age 25+)

Share of adults 25+

King CountySnohomish County
No high school diploma6.2%6.9%
High school graduate14.3%22.7%
Some college or associate's23.6%33.5%
Bachelor's degree32.4%24.2%
Graduate or professional degree23.5%12.6%

Commute to work

How workers get to work (share)

King CountySnohomish County
Drove alone51.8%66.6%
Carpooled7.2%9.2%
Public transit8.0%3.1%
Walked4.3%1.7%
Bicycle1.1%0.3%
Worked from home26.2%18.1%
Other means1.3%1.1%

Housing

Units in structure (share)

King CountySnohomish County
1-unit, detached50.9%64.1%
1-unit, attached5.4%4.9%
2 to 4 units5.5%5.7%
5 to 19 units12.3%10.1%
20 or more units24.3%10.3%
Mobile home & other1.5%4.9%

Poverty & households

King CountySnohomish County
Poverty rate8.4%7.9%
Average household size2.392.64
Mean commute (minutes)2831
Median year structure built19831989

Full profiles

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