Snohomish County, Washington
Located in Washington, Snohomish County has a population of 844,430 residents and a median age of 38.6 years, making it the #73 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 8.0%. The median home value is $696,000, and the median household income is $111,246, which is 48% above the national median.
Demographics
Snohomish County has a population of 844,430, making it the #73 most populous county in the US. The median age is 38.6 years, which is 0.8% below the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Snohomish County is $111,246, ranking #90 out of 3,222 counties — 48.0% above the national median. The poverty rate is 8.0% and unemployment stands at 4.4%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Snohomish County is $696,000 (+146.9% vs national). Renters pay a median of $1,949/mo and the homeownership rate is 68.2%.
Median Home Value Trend
Rankings →Household Type
Education
In Snohomish County, 38.2% of adults age 25+ hold a bachelor's degree or higher, which is 13.5% above the national average, ranking #337 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Snohomish County is 79.3 years. 14.8% of adults report poor or fair health and 6.7% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
10.7% of adults in Snohomish County smoke , 32.9% are obese , and 17.3% report excessive drinking. The drug overdose death rate is 29.4 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Snohomish County is 2.8 per 100,000 and the suicide rate is 14.1 per 100,000. Motor vehicle deaths occur at a rate of 7.1 per 100,000.
Homicide Rate Trend
Families & Children
10.3% of children in Snohomish County live in poverty and the infant mortality rate is 3.6 per 1,000 live births. The teen birth rate is 8.7 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Snohomish County is 77.0%. The mean commute time is 34.1 min, which is 23.4% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Snohomish County voted Democratic with a margin of 18.9%. The vote was 57.8% Dem / 38.9% Rep. Compared to 2020, the margin shifted 1.7 toward Republicans .
Vote Share Over Time
About Snohomish County, Washington
Snohomish County, Washington has a total population of 844,430, making it the 73rd most populous county in the United States. The median age in Snohomish County is 38.6 years, which is 0.8% below the national median of 38.9 years.
The median household income in Snohomish County is $111,246, which ranks #90 of 3,222 counties nationwide. This is 48.0% above the national median of $75,149. The poverty rate is 8.0%, lower than the national rate of 12.6%. The unemployment rate stands at 4.4%.
The median home value in Snohomish County is $696,000, 146.9% above the national median. Renters in Snohomish County pay a median gross rent of $1,949 per month. The homeownership rate is 68.2%, compared to the national rate of 64.4%.
In Snohomish County, 38.2% of residents aged 25 and older hold a bachelor's degree or higher, 13.5% above the national average of 33.7%. Health insurance coverage stands at 93.8% of the population. The average commute time for workers is 34.1 min.
Snohomish County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 62.0% of the population, followed by Asian (non-Hispanic) (13.6%) and Hispanic or Latino (12.1%).
All data for Snohomish County, Washington comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.