Cottage Lake, Washington Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Cottage Lake, Washington is 23,170 as of the 2023 American Community Survey, making it the 59th-largest city in Washington. The median household income is $197,331, the median home value is $1,164,000, and the median age is 44.2.
23,170
Population
1019
People / sq mi
$197,331
Median Income
$1,164,000
Median Home Value
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Cottage Lake covers 22.7 sq mi of land at 1019 people per square mile.
About Cottage Lake, WA
Among US cities, Cottage Lake stands out first on household income: a median of $197,331, above the US median of $78,538. With 23,170 residents, Cottage Lake is a city in Washington.
Households here are among the highest-earning of all US cities: median income is $197,331, above the US median of $78,538. Very few residents live in poverty — 2.3%, below the national 12.4%. Home prices are steep, with the typical property valued at $1,164,000, with typical rent around $2,374.
Cottage Lake is among the best-educated US cities: 67.7% of adults 25 and older hold a bachelor’s degree, above the national 35.0%. Working from home is common here: 30.2% of workers do so, above the national 14.0%, and the average commute runs about 27 minutes each way.
Taken together, the income and housing figures place Cottage Lake firmly in the higher-cost, higher-earning tier of US cities — a profile that tends to track dense job markets and competitive housing.
Race & Ethnicity
| White | 79.1% |
| Black or African American | 0.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.0% |
| Two or More Races | 0.0% |
Economy & Income
$197,331
Median Household Income
$87,194
Per Capita Income
2.3%
Poverty Rate
2.3%
Unemployment Rate
Housing
$1,164,000
Median Home Value
$2,374
Median Rent
91.7%
Owner-Occupied
Education
96.6%
High School+
67.7%
Bachelor's+
Commute
0.9%
Drive Alone
61.7%
Public Transit
30.2%
Work From Home
27.1 min
Avg Commute
Community Profile
36.6%
Foreign Born
83.7%
Non-English at Home
3.8%
Veterans
8.5%
With Disability
96.9%
Health Insurance
99.6%
Internet Access
Employment by Industry
| Finance, Insurance & Real Estate | 27.0% |
| Professional, Scientific & Management | 20.0% |
| Manufacturing | 11.9% |
| Construction | 7.2% |
| Information | 7.0% |
| Transportation & Warehousing | 5.4% |
| Education, Health Care & Social Services | 3.8% |
| Arts, Entertainment & Food Services | 3.0% |
| Public Administration | 1.6% |
| Retail Trade | 1.4% |
| Agriculture & Mining | 0.6% |
Largest cities in Washington
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Part of Washington
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City rankings
Frequently Asked Questions
Cottage Lake, Washington has a population of 23,170 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 59th-largest city in Washington.
The median household income in Cottage Lake, Washington is $197,331, with 2.3% of residents living below the federal poverty level.
The median home value in Cottage Lake, Washington is $1,164,000, with median monthly rent at $2,374 and a homeownership rate of 91.7%.
The median age in Cottage Lake, Washington is 44.2 years. The population is 51.3% male and 48.7% female.
Where to stay in Cottage Lake
Visiting or relocating to Cottage Lake, WA? Compare hotels and short-term rentals across the metro — live availability and prices.
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Statewide data for Washington
Population, race, income, age, and trends across Washington
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.