Cottage Lake, Washington Population 2024

23,227

Cottage Lake is a city located in King County and Snohomish County Washington. Cottage Lake has a 2024 population of 23,227. Cottage Lake is currently declining at a rate of -0.01% annually and its population has decreased by -0.05% since the most recent census, which recorded a population of 23,239 in 2020.

The average household income in Cottage Lake is $244,385 with a poverty rate of 2.63%. The median age in Cottage Lake is 44.5 years: 45.3 years for males, and 43.9 years for females.

Cottage Lake Demographics

According to the most recent ACS, the racial composition of Cottage Lake was:

  • White: 79.79%
  • Asian: 9.16%
  • Two or more races: 8.91%
  • Other race: 1.33%
  • Black or African American: 0.59%
  • Native Hawaiian or Pacific Islander: 0.22%
  • Native American: 0.02%
Land Area (mi²)
22.7 sq mi
Density (mi²)
1,021.60/sq mi
Growth Since 2020
-0.05% (-12)
The current population of Cottage Lake, Washington is 23,227 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 23,239.

Population by Race

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Race
Population
Percentage (of total)
White18,53779.79%
Asian2,1279.16%
Two or more races2,0708.91%
Other race3091.33%
Black or African American1360.59%
Native Hawaiian or Pacific Islander500.22%
Native American40.02%

White

Asian

Two or more races

Other race

Black or African American

Native Hawaiian or Pacific Islander

Native American

Cottage Lake Population by Race

Cottage Lake Population Pyramid 2024

Cottage Lake Median Age

44.5

Total

45.3

Male

43.9

Female

Cottage Lake Adults

There are 17,769 adults, (3,883 of whom are seniors) in Cottage Lake.

Cottage Lake Age Dependency

67.3

Age Dependency Ratio

28

Old Age Dependency Ratio

39.3

Child Dependency Ratio

Cottage Lake Sex Ratio

Female11,55449.73%
Male11,67950.27%

Cottage Lake Population by Age

Cottage Lake Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All7,8302.9691.88.2
Married6,2473.1694.95.1
Non Family1,0401.57822
Female3843.268119
Male1593.8784.915.1

3.13

Average Family Size

2.96

Average Household Size

91.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Cottage Lake Households and Families

Male

Female

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Education Attained
Count
Percentage
9th to 12th Grade2091.27%
Associates Degree1,0106.12%
Bachelors Degree6,77241.02%
Graduate Degree4,29326.01%
High School Graduate1,69010.24%
Less Than 9th Grade2141.3%
Some College2,32014.05%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Cottage Lake Educational Attainment by Sex (over 25)

Cottage Lake Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White13,35413,1628,904
Asian1,6661,6381,369
2+ Races1,014890574
Hispanic675486256
Other Race22015585
Black949419
Islander291515

The highest rate of high school graduation is among black people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 82.17%.

Cottage Lake Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Bachelors Degree$90,179$150,694$59,491
Graduate Degree$131,379$179,539$79,729
High School Graduate$44,250$61,701$34,400
Less Than 9th Grade$74,103$102,969$29,958
Overall$94,426$136,790$59,122
Some College$80,179$104,205$48,780

$94,426

Average Earnings

$136,790

Average Male

$59,122

Average Female

Cottage Lake Earnings by Educational Attainment

Cottage Lake Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Cottage Lake Language

85.42% of Cottage Lake residents speak only English, while 14.58% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 6.25% of the population.

Cottage Lake Language

Cottage Lake Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White18,1724232.33%
Asian2,127833.9%
Hispanic1,248534.25%
Multiple2,069462.22%
Islander502856%
Other308216.82%
Black13521.48%

2.63%

Overall Poverty Rate

1.92%

Male Poverty Rate

3.36%

Female Poverty Rate

Poverty in Cottage Lake

The race most likely to be in poverty in Cottage Lake is Islander, with 56% below the poverty level.

The race least likely to be in poverty in Cottage Lake is Black, with 1.48% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.27%. Among those working part-time, it was 2.83%, and for those that did not work, the poverty rate was 6%.

Cottage Lake Poverty

rate

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Rate
Poverty
Less Than 9th Grade5.44%
Some College5.14%
High School2.6%
Bachelors or Greater2.02%

Cottage Lake Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed18.6%
Male Unemployed3.14%
Female Employed1.68%
Male Employed0.67%

Cottage Lake Poverty Rate by Employment Status and Sex

Cottage Lake Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Families$202,500$258,327
Households$186,402$244,385
Married Families$216,862$-999,999,999
Non Families$118,913$141,060

mean

median

Income by Household Type

Cottage Lake Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

69.7%

Overall Marriage Rate

70.0%

Male Marriage Rate

69.4%

Female Marriage Rate

Cottage Lake Married by Age and Sex

male

female

Cottage Lake Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Cottage Lake Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Cottage Lake Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

705

Number of Veterans

681

Male Veterans

24

Female Veterans

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War
Veterans
Vietnam365
First Gulf War141
Second Gulf War73
Korea64
World War II0

Cottage Lake Veterans by War

count

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Age Group
Veterans
75+287
65 to 74207
35 to 54147
55 to 6464
18 to 340

Cottage Lake Veterans by Age

count

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Name
Veterans
% of Total
White5343.7%
2+ Races776.25%
Asian704.14%
Hispanic394.42%
Other Race186.59%
Black65.71%

Cottage Lake Veterans by Race

Cottage Lake Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

2.27%

Veteran Poverty Rate

25.11%

Veteran Disability Rate

Cottage Lake Veterans by Education

LaborForceParticipation

60.5%

Labor Force Participation

58.3%

Employment Rate

3.6%

Unemployment Rate

Cottage Lake Employment by Age

LaborForceParticipation

Cottage Lake Employment by Race

LaborForceParticipation

Cottage Lake Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

44.47%

Born in Cottage Lake

84.97%

Native Born

15.03%

Foreign Born

6.84%

Non Citizen

8.19%

Naturalized

Place of Birth

84.97% of Cottage Lake residents were born in the United States, with 44.47% having been born in Washington. 6.84% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Cottage Lake Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202423,227-3-0.01%
202323,230-3-0.01%
202223,2334541.99%
202122,779-460-1.98%
202023,2395622.48%
201922,677-1,278-5.34%
201823,955140.06%
201723,941960.4%
201623,8451420.6%
201523,7033851.65%
201423,318-595-2.49%
201323,9134972.12%
201223,4164171.81%
201122,9995052.25%
201022,49400%

Cottage Lake Population by Year