Mattawa

County:: Grant County
County Seat:: No
Area (mi²):: 1.001
State:: Washington

Mattawa is a city located in Grant County, Washington. Mattawa has a 2025 population of 4,040. Mattawa is currently growing at a rate of 3.59% annually and its population has increased by 20.89% since the most recent census, which recorded a population of 3,342 in 2020.

The average household income in Mattawa is $52,256 with a poverty rate of 25.36%. The median age in Mattawa is 22.5 years: 22.8 years for males, and 21.8 years for females.

Demographics

The racial composition of Mattawa includes 49.23% other race, 15.93% White, and smaller percentages for Native American, Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Other race

Two or more races

White

Native American

Asian

Black or African American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
Other race	1,749	49.23%
Two or more races	1,180	33.21%
White	566	15.93%
Native American	55	1.55%
Asian	3	0.08%
Black or African American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Mattawa Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Mattawa's average per capita income is $30,170. Household income levels show a median of $41,250. The poverty rate stands at 25.36%.

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	$58,889	-
Families	$43,750	$50,130
Households	$41,250	$52,256
Non Families	-	$33,801

$30,170

Average Income

$41,250

Median Household Income

25.36%

Poverty Rate