Clark County, Washington
Located in Washington, Clark County has a population of 516,959 residents and a median age of 39.1 years, making it the #142 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 $522,900, and the median household income is $97,536, which is 30% above the national median.
Demographics
Clark County has a population of 516,959, making it the #142 most populous county in the US. The median age is 39.1 years, which is 0.5% above 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 Clark County is $97,536, ranking #191 out of 3,222 counties — 29.8% above the national median. The poverty rate is 8.0% and unemployment stands at 5.3%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Clark County is $522,900 (+85.5% vs national). Renters pay a median of $1,748/mo and the homeownership rate is 66.4%.
Median Home Value Trend
Rankings →Household Type
Education
In Clark County, 33.3% of adults age 25+ hold a bachelor's degree or higher, which is 1.1% below the national average, ranking #554 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Clark County is 78.6 years. 13.5% of adults report poor or fair health and 6.9% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
10.6% of adults in Clark County smoke , 32.6% are obese , and 20.3% report excessive drinking. The drug overdose death rate is 23.5 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Clark County is 3.2 per 100,000 and the suicide rate is 16.9 per 100,000. Motor vehicle deaths occur at a rate of 8.6 per 100,000.
Homicide Rate Trend
Families & Children
8.4% of children in Clark County live in poverty and the infant mortality rate is 4.2 per 1,000 live births. The teen birth rate is 10.5 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Clark County is 79.3%. The mean commute time is 27.0 min, which is 2.3% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Clark County voted Democratic with a margin of 7.0%. The vote was 52.1% Dem / 45.1% Rep. Compared to 2020, the margin shifted +1.9 toward Democrats .
Vote Share Over Time
About Clark County, Washington
Clark County, Washington has a total population of 516,959, making it the 142nd most populous county in the United States. The median age in Clark County is 39.1 years, which is 0.5% above the national median of 38.9 years.
The median household income in Clark County is $97,536, which ranks #191 of 3,222 counties nationwide. This is 29.8% 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 5.3%.
The median home value in Clark County is $522,900, 85.5% above the national median. Renters in Clark County pay a median gross rent of $1,748 per month. The homeownership rate is 66.4%, compared to the national rate of 64.4%.
In Clark County, 33.3% of residents aged 25 and older hold a bachelor's degree or higher, 1.1% below the national average of 33.7%. Health insurance coverage stands at 93.3% of the population. The average commute time for workers is 27.0 min.
Clark County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 72.5% of the population, followed by Hispanic or Latino (12.3%) and Two or More Races (6.4%).
All data for Clark 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.