Tumwater, Washington Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Tumwater, 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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A
Health Above average
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B
Income Around average
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A
Education Above average
Source: Map AI Methodology
Population
| Metric | Tumwater | Washington Avg | U.S. Average |
|---|---|---|---|
| Population | 23,169 | 7,801,159 | 337,468,954 |
| Population density (per sq mi) | 1285.5 | 109.3 | 86.4 |
| Population growth (%/yr) | 1.36% | 1.21% | 0.59% |
| Median age | 35.3 | 36.2 | 37.3 |
| Households | 9,879 | 3,058,619 | 130,235,071 |
Population in Tumwater grew by 26.4% from 2009 to 2024, reaching 23,169 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Tumwater is Millennials, aged 29–44, at 24.5% of residents. That is 1.2 points above Washington as a whole.
- Gen Z 13–28 4,897 21.1% -0.3 pts
- Millennials 29–44 5,679 24.5% +1.2 pts
- Gen X 45–60 4,375 18.9% -0.6 pts
- Boomers 61–79 3,889 16.8% +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 52.3% of the people living in Tumwater and men 47.7%.
- Women 52.3% Washington 49.7%
- Men 47.7% Washington 50.3%
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Economy
Tumwater has a the economy index of B, which means it is quite prosperous.
| Metric | Tumwater | Washington Avg | U.S. Average |
|---|---|---|---|
| Median household income | $86,749 | $98,224 | $80,455 |
| Income growth (%/yr) | 4.96% | 5.64% | 4.80% |
| Unemployment rate | 5.9% | 5.0% | 5.2% |
The median household income in Tumwater is about 12% lower than in Washington.
Housing
| Metric | Tumwater | Washington Avg | U.S. Average |
|---|---|---|---|
| Median home price | $588,830 | $485,016 | $248,835 |
| Median rent | $1,728 | $1,759 | $1,407 |
| Homeownership rate | 57.7% | 63.8% | 65.2% |
The median home price in Tumwater is about 28.4 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,728 per month for that long.
Commute Time & Mobility
Commuters in Tumwater spend about 35 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 147 hours, about 6.1 full days, spent commuting.
| Metric | Tumwater | Washington Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 17.6 | 22.4 | 22.4 |
| Round-trip commute (min) | 35.2 | 44.8 | 44.8 |
| Yearly time spent (hours) | 147 | 187 | 187 |
| Estimated yearly cost | $4,546 | $5,785 | $5,790 |
| Work from home | 28.2% | 19.8% | 15.0% |
| Highway traffic (vehicles/day) | 22,531 | 10,119 | 8,813 |
| Local road traffic (vehicles/day) | 3,631 | 1,525 | 1,355 |
The average commute time in Tumwater is 18 minutes, shorter than the 22 minutes 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
Tumwater has a education index of A, which means it is very educated.
| Metric | Tumwater | Washington Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 36.7% | 35.1% | 31.6% |
| Average household size | 2.30 | 2.50 | 2.53 |
Health
Tumwater has a health index of A, which means it is very healthy.
| Metric | Tumwater | Washington Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 79.7 | 79.6 | 78.3 |
| Self-rated poor health | 12.0% | 15.4% | 16.3% |
| Smokers | 13.9% | 16.4% | 19.0% |
Tumwater, WA Compared With Nearby Cities
How Tumwater, WA compares with the 2 cities closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Tumwater, WA | 23,169 | $86,749 #2/3 | $588,830 #1/3 | 17.6 min #2/3 |
| Olympia, WA | 51,739 | $82,402 | $460,751 | 16.3 min |
| Lacey, WA | 50,062 | $91,612 | $443,044 | 21.7 min |
Frequently Asked Questions
Common questions about Tumwater, Washington.
How big is Tumwater, Washington by population?
About 23,169 people live in Tumwater, Washington, in 9,879 households of 2.3 people on average. The median age is 35.3, so residents are younger than the U.S. median of 37.3 by about 2 years.
How densely populated is Tumwater, Washington?
Averaged over its land area, Tumwater, Washington has 1,286 people per square mile, a density typical of urban and suburban areas. That is about 15 times the U.S. average of 86.
How affordable is housing in Tumwater, Washington?
The median home costs 6.8 times the median household income ($588,830 against $86,749), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,728 a month takes about 24% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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