Cottage Lake, Washington Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Cottage Lake, 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 Top grade
Source: Map AI Methodology
Population
| Metric | Cottage Lake | Washington Avg | U.S. Average |
|---|---|---|---|
| Population | 24,620 | 7,801,159 | 337,468,954 |
| Population density (per sq mi) | 1076.9 | 109.3 | 86.4 |
| Population growth (%/yr) | -0.27% | 1.21% | 0.59% |
| Median age | 40.3 | 36.2 | 37.3 |
| Households | 8,531 | 3,058,619 | 130,235,071 |
Population in Cottage Lake grew by 3.5% from 2009 to 2024, reaching 24,620 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Cottage Lake is Gen X, aged 45–60, at 26.1% of residents. That is 6.6 points above Washington as a whole.
- Gen Z 13–28 4,081 16.6% -4.8 pts
- Millennials 29–44 5,104 20.7% -2.6 pts
- Gen X 45–60 6,436 26.1% +6.6 pts
- Boomers 61–79 4,166 16.9% +0.7 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 49.4% of the people living in Cottage Lake and men 50.6%.
- Women 49.4% Washington 49.7%
- Men 50.6% Washington 50.3%
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Economy
Cottage Lake has a the economy index of A+, which means it is exceptionally prosperous.
| Metric | Cottage Lake | Washington Avg | U.S. Average |
|---|---|---|---|
| Median household income | $200,961 | $98,224 | $80,455 |
| Income growth (%/yr) | 5.14% | 5.64% | 4.80% |
| Unemployment rate | 3.7% | 5.0% | 5.2% |
The median household income in Cottage Lake is about 105% higher than in Washington.
Housing
| Metric | Cottage Lake | Washington Avg | U.S. Average |
|---|---|---|---|
| Median home price | $2,234,034 | $485,016 | $248,835 |
| Median rent | $2,608 | $1,759 | $1,407 |
| Homeownership rate | 87.4% | 63.8% | 65.2% |
The median home price in Cottage Lake is about 71.4 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,608 per month for that long.
Commute Time & Mobility
Commuters in Cottage Lake spend about 47 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 196 hours, about 8.2 full days, spent commuting.
| Metric | Cottage Lake | Washington Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 23.6 | 22.4 | 22.4 |
| Round-trip commute (min) | 47.1 | 44.8 | 44.8 |
| Yearly time spent (hours) | 196 | 187 | 187 |
| Estimated yearly cost | $6,089 | $5,785 | $5,790 |
| Work from home | 34.1% | 19.8% | 15.0% |
| Highway traffic (vehicles/day) | 29,970 | 10,119 | 8,813 |
| Local road traffic (vehicles/day) | 2,651 | 1,525 | 1,355 |
The average commute time in Cottage Lake is 24 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
Cottage Lake has a education index of A+, which means it is exceptionally educated.
| Metric | Cottage Lake | Washington Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 63.3% | 35.1% | 31.6% |
| Average household size | 2.88 | 2.50 | 2.53 |
Health
Cottage Lake has a health index of A+, which means it is exceptionally healthy.
| Metric | Cottage Lake | Washington Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 83.5 | 79.6 | 78.3 |
| Self-rated poor health | 7.6% | 15.4% | 16.3% |
| Smokers | 8.2% | 16.4% | 19.0% |
Cottage Lake, WA Compared With Nearby Cities
How Cottage Lake, WA compares with the 2 cities closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Cottage Lake, WA | 24,620 | $200,961 #1/3 | $2,234,034 #1/3 | 23.6 min #2/3 |
| Redmond, WA | 71,994 | $160,130 | $656,083 | 18.6 min |
| Union Hill-Novelty Hill, WA | 23,529 | $184,178 | $826,184 | 25.9 min |
Frequently Asked Questions
Common questions about Cottage Lake, Washington.
What is the population of Cottage Lake, Washington?
About 24,620 people live in Cottage Lake, Washington, in 8,531 households of 2.9 people on average. The median age is 40.3, so residents are older than the U.S. median of 37.3 by about 3 years.
How densely populated is Cottage Lake, Washington?
Averaged over its land area, Cottage Lake, Washington has 1,077 people per square mile, a density typical of urban and suburban areas. That is about 12 times the U.S. average of 86.
Is Cottage Lake, Washington an affordable place to live?
The median home costs 11.1 times the median household income ($2,234,034 against $200,961), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $2,608 a month takes about 16% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How strong is the job market in Cottage Lake, Washington?
Unemployment in Cottage Lake, Washington is only 3.7%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
How common is a college degree in Cottage Lake, Washington?
63.3% of adults in Cottage Lake, Washington hold a bachelor's degree or higher (about 6 in 10), well above the U.S. share of 31.6%.
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