Sunday Lake

County:: Snohomish County
County Seat:: No
Area (mi²):: 3.327
State:: Washington

Sunday Lake is a CDP located in Snohomish County, Washington. Sunday Lake has a 2025 population of 1,297. Sunday Lake is currently growing at a rate of 3.43% annually and its population has increased by 36.96% since the most recent census, which recorded a population of 947 in 2020.

The average household income in Sunday Lake is $149,188 with a poverty rate of 9.93%.The median age in Sunday Lake is 41 years: 41.3 years for males, and 39.8 years for females.

Demographics

The racial composition of Sunday Lake includes 80.31% White, 4.96% other race, 3.72% Asian, and smaller percentages for and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	971	80.31%
Two or more races	133	11%
Other race	60	4.96%
Asian	45	3.72%

Sunday Lake Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sunday Lake's average per capita income is $56,094. Household income levels show a median of $110,491. The poverty rate stands at 9.93%.

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	$210,000	-
Families	$115,625	$166,549
Households	$110,491	$149,188
Non Families	-	$51,975

$56,094

Average Income

$110,491

Median Household Income

9.93%

Poverty Rate