Clark County, Washington Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Clark County, WA Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around averageHealthier than 71% of counties in Washington
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B
Income Around averageAmong the top 5 wealthiest counties in Washington
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C
Education Below averageBetter educated than 71% of counties in Washington
Source: Map AI Methodology
Population: density and quick facts
| Metric | Clark County | Washington Avg | U.S. Average |
|---|---|---|---|
| Population | 516,710 | 7,801,159 | 337,468,954 |
| Population density (per sq mi) | 788.7 | 109.3 | 86.4 |
| Population growth (%/yr) | 1.72% | 1.21% | 0.59% |
| Median age | 37.5 | 36.2 | 37.3 |
| Households | 195,941 | 3,058,619 | 130,235,071 |
Population in Clark County grew by 24.2% from 2009 to 2024, reaching 516,710 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Clark County is Millennials, aged 29–44, at 22.2% of residents. That is 1.1 points below Washington as a whole.
- Gen Z 13–28 107,266 20.8% -0.7 pts
- Millennials 29–44 114,807 22.2% -1.1 pts
- Gen X 45–60 109,771 21.2% +1.7 pts
- Boomers 61–79 81,636 15.8% -0.5 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Washington, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.4% of the people living in Clark County and men 49.6%.
- Women 50.4% Washington 49.7%
- Men 49.6% Washington 50.3%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Clark County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Clark County has a the economy index of B, which means it is quite prosperous.
| Metric | Clark County | Washington Avg | U.S. Average |
|---|---|---|---|
| Median household income | $98,079 | $98,224 | $80,455 |
| Income growth (%/yr) | 5.63% | 5.64% | 4.80% |
| Unemployment rate | 5.3% | 5.0% | 5.2% |
The median household income in Clark County is about the same as in Washington.
Housing
| Metric | Clark County | Washington Avg | U.S. Average |
|---|---|---|---|
| Median home price | $477,323 | $485,016 | $248,835 |
| Median rent | $1,747 | $1,759 | $1,407 |
| Homeownership rate | 66.4% | 63.8% | 65.2% |
The median home price in Clark County is about 22.8 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,747 per month for that long.
Commute Time & Mobility
Commuters in Clark County spend about 43 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 181 hours, about 7.5 full days, spent commuting.
| Metric | Clark County | Washington Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 21.7 | 22.4 | 22.4 |
| Round-trip commute (min) | 43.3 | 44.8 | 44.8 |
| Yearly time spent (hours) | 181 | 187 | 187 |
| Estimated yearly cost | $5,598 | $5,785 | $5,790 |
| Work from home | 19.1% | 19.8% | 15.0% |
| Highway traffic (vehicles/day) | 17,381 | 10,119 | 8,813 |
| Local road traffic (vehicles/day) | 2,989 | 1,525 | 1,355 |
Fastest commutes among counties in
Washington:
Walla Walla County (12.2 min), San Juan County (12.3 min), Asotin County (13.2 min).
Slowest:
Mason County (32.0 min), Garfield County (28.4 min), Snohomish County (28.3 min).
The average commute time in Clark County is about the same as in Washington.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Clark County has a education index of C, which means it is somewhat educated.
| Metric | Clark County | Washington Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 29.7% | 35.1% | 31.6% |
| Average household size | 2.62 | 2.50 | 2.53 |
Highest education index among counties in
Washington:
King County (0.4), San Juan County (0.4), Jefferson County (0.4).
Lowest:
Adams County (0.2), Yakima County (0.2), Grant County (0.2).
Health
Clark County has a health index of B, which means it is quite healthy.
| Metric | Clark County | Washington Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 79.1 | 79.6 | 78.3 |
| Self-rated poor health | 12.5% | 15.4% | 16.3% |
| Smokers | 14.9% | 16.4% | 19.0% |
Highest health index among counties in
Washington:
King County (0.8), Whitman County (0.8), San Juan County (0.8).
Lowest:
Adams County (0.8), Okanogan County (0.8), Pacific County (0.8).
Clark County, WA Compared With Nearby Counties
Clark County, WA is the 2nd largest of the 5 counties compared here, 516,710 residents against a local median of 267,924. Clark County, WA sits close to the middle of its own neighbourhood. No measure below is more than 15% off the local median, so the choice between these counties turns on things this data does not capture.
The largest of those small differences is median household income, 11% above the local median at $98,079 against $88,147. Clark County, WA has the 2nd highest median household income of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Clark County, WA | 516,710 | $98,079 #2/5 | $477,323 #2/5 | 21.7 min #2/5 |
| Multnomah County, OR | 801,042 | $89,512 | $474,481 | 22.1 min |
| Cowlitz County, WA | 112,357 | $76,590 | $394,545 | 18.9 min |
| Columbia County, OR | 53,499 | $86,781 | $238,667 | 31.7 min |
| Clackamas County, OR | 423,491 | $103,455 | $536,509 | 23.9 min |
Frequently Asked Questions
Common questions about Clark County, Washington.
How big is Clark County, Washington by population?
About 516,710 people live in Clark County, Washington, in 195,941 households of 2.6 people on average. The median age is 37.5, close to the U.S. median of 37.3.
Is Clark County, Washington mostly urban or rural?
Averaged over its land area, Clark County, Washington has 789 people per square mile, a density typical of a mix of suburbs, small towns and farmland. That is about 9.1 times the U.S. average of 86.
Is Clark County, Washington an affordable place to live?
The median home costs 4.9 times the median household income ($477,323 against $98,079), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,747 a month takes about 21% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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