Maple Valley, Washington Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Maple Valley, 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 Top grade
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A+
Income Top grade
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A
Education Above average
Source: Map AI Methodology
Population
| Metric | Maple Valley | Washington Avg | U.S. Average |
|---|---|---|---|
| Population | 20,273 | 7,801,159 | 337,468,954 |
| Population density (per sq mi) | 3278.1 | 109.3 | 86.4 |
| Population growth (%/yr) | 1.06% | 1.21% | 0.59% |
| Median age | 38.3 | 36.2 | 37.3 |
| Households | 6,712 | 3,058,619 | 130,235,071 |
Population in Maple Valley grew by 48.6% from 2009 to 2024, reaching 20,273 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Maple Valley is Millennials, aged 29–44, at 27.6% of residents. That is 4.3 points above Washington as a whole.
- Gen Z 13–28 3,585 17.7% -3.7 pts
- Millennials 29–44 5,600 27.6% +4.3 pts
- Gen X 45–60 4,118 20.3% +0.8 pts
- Boomers 61–79 2,141 10.6% -5.7 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 49.7% of the people living in Maple Valley and men 50.3%.
- Women 49.7% Washington 49.7%
- Men 50.3% Washington 50.3%
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100% of everyone living in Maple Valley
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Economy
Maple Valley has a the economy index of A+, which means it is exceptionally prosperous.
| Metric | Maple Valley | Washington Avg | U.S. Average |
|---|---|---|---|
| Median household income | $154,387 | $98,224 | $80,455 |
| Income growth (%/yr) | 5.93% | 5.64% | 4.80% |
| Unemployment rate | 5.4% | 5.0% | 5.2% |
The median household income in Maple Valley is about 57% higher than in Washington.
Housing
| Metric | Maple Valley | Washington Avg | U.S. Average |
|---|---|---|---|
| Median home price | $580,827 | $485,016 | $248,835 |
| Median rent | $2,404 | $1,759 | $1,407 |
| Homeownership rate | 85.6% | 63.8% | 65.2% |
The median home price in Maple Valley is about 20.1 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,404 per month for that long.
Commute Time & Mobility
Commuters in Maple Valley spend about 74 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 309 hours, about 12.9 full days, spent commuting.
| Metric | Maple Valley | Washington Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 37.1 | 22.4 | 22.4 |
| Round-trip commute (min) | 74.3 | 44.8 | 44.8 |
| Yearly time spent (hours) | 309 | 187 | 187 |
| Estimated yearly cost | $9,592 | $5,785 | $5,790 |
| Work from home | 23.3% | 19.8% | 15.0% |
| Highway traffic (vehicles/day) | 11,041 | 10,119 | 8,813 |
| Local road traffic (vehicles/day) | 2,867 | 1,525 | 1,355 |
The average commute time in Maple Valley is 37 minutes, longer 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
Maple Valley has a education index of A, which means it is very educated.
| Metric | Maple Valley | Washington Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 43.0% | 35.1% | 31.6% |
| Average household size | 3.02 | 2.50 | 2.53 |
Health
Maple Valley has a health index of A+, which means it is exceptionally healthy.
| Metric | Maple Valley | Washington Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 80.6 | 79.6 | 78.3 |
| Self-rated poor health | 8.2% | 15.4% | 16.3% |
| Smokers | 10.9% | 16.4% | 19.0% |
Frequently Asked Questions
Common questions about Maple Valley, Washington.
What is the population of Maple Valley, Washington?
About 20,273 people live in Maple Valley, Washington, in 6,712 households of 3.0 people on average. The median age is 38.3, close to the U.S. median of 37.3.
How densely populated is Maple Valley, Washington?
Averaged over its land area, Maple Valley, Washington has 3,278 people per square mile, a density typical of a city. That is about 38 times the U.S. average of 86.
How affordable is housing in Maple Valley, Washington?
The median home costs 3.8 times the median household income ($580,827 against $154,387), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $2,404 a month takes about 19% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
What share of adults in Maple Valley, Washington have a college degree?
43.0% of adults in Maple Valley, Washington hold a bachelor's degree or higher (about 1 in 2), well above the U.S. share of 31.6%.
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