Cottage Lake Flag

Cottage Lake

County:
King County
County Seat:
No
Area (mi²):
22.736
State:
Washington

Cottage Lake is a CDP located in King County, Washington. Cottage Lake has a 2025 population of 23,418. Cottage Lake is currently growing at a rate of 0.27% annually and its population has increased by 0.77% since the most recent census, which recorded a population of 23,239 in 2020.

The average household income in Cottage Lake is $255,088 with a poverty rate of 3.1%.The median age in Cottage Lake is 44.2 years: 44 years for males, and 44.5 years for females.

23.4K
Total Population
1,030
Density (mi²)
62 0.27%
Growth

Cottage Lake Population

Cottage Lake Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Cottage Lake includes 79.06% White, 8.88% Asian, and smaller percentages for other race, Native Hawaiian or Pacific Islander, Black or African American, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White18,31879.06%
Two or more races2,2739.81%
Asian2,0588.88%
Other race3901.68%
Native Hawaiian or Pacific Islander700.3%
Black or African American530.23%
Native American80.03%

Cottage Lake Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Cottage Lake's average per capita income is $102,134. Household income levels show a median of $197,331. The poverty rate stands at 3.1%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$225,288-
Families$214,171$271,023
Households$197,331$255,088
Non Families$127,708$146,995

$102,134

Average Income

$197,331

Median Household Income

3.1%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)