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, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Other race

Native American

Asian

Black or African American

Native Hawaiian or Pacific Islander

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%
Native Hawaiian or Pacific Islander	0	0%

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