Tumwater

County:: Thurston County
County Seat:: No
Area (mi²):: 17.744
State:: Washington

Tumwater is a city located in Thurston County, Washington. Tumwater has a 2025 population of 27,971. Tumwater is currently growing at a rate of 1.33% annually and its population has increased by 7% since the most recent census, which recorded a population of 26,140 in 2020.

The average household income in Tumwater is $115,276 with a poverty rate of 7.82%. The median age in Tumwater is 38.1 years: 37.8 years for males, and 38.9 years for females.

Demographics

The racial composition of Tumwater includes 74.6% White, 4.22% Asian, 3.76% Black or African American, 3.26% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	19,782	74.6%
Two or more races	3,343	12.61%
Asian	1,120	4.22%
Black or African American	997	3.76%
Other race	864	3.26%
Native American	304	1.15%
Native Hawaiian or Pacific Islander	109	0.41%

Tumwater Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Tumwater's average per capita income is $60,369. Household income levels show a median of $93,635. The poverty rate stands at 7.82%.

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	$127,461	-
Families	$112,913	$127,761
Households	$93,635	$115,276
Non Families	$61,551	$89,710

$60,369

Average Income

$93,635

Median Household Income

7.82%

Poverty Rate