Sumas

County:: Whatcom County
County Seat:: No
Area (mi²):: 1.467
State:: Washington

Sumas is a city located in Whatcom County, Washington. Sumas has a 2025 population of 1,704. Sumas is currently growing at a rate of 1.19% annually and its population has increased by 6.1% since the most recent census, which recorded a population of 1,606 in 2020.

The average household income in Sumas is $94,831 with a poverty rate of 11.33%.The median age in Sumas is 32.1 years: 30 years for males, and 35.7 years for females.

Demographics

The racial composition of Sumas includes 79.84% White, and smaller percentages for other race, Native American, Asian, Black or African American and multiracial populations.

Population by Race

Race	Population	Percentage (of total)
White	1,105	79.84%
Two or more races	179	12.93%
Other race	38	2.75%
Native American	30	2.17%
Asian	29	2.1%
Black or African American	3	0.22%

Sumas Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sumas' average per capita income is $61,552. Household income levels show a median of $86,500. The poverty rate stands at 11.33%.

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	$108,125	-
Families	$107,422	$111,927
Households	$86,500	$94,831
Non Families	$38,750	$54,585

$61,552

Average Income

$86,500

Median Household Income

11.33%

Poverty Rate