Seatac

County:: King County
County Seat:: No
Area (mi²):: 10.064
State:: Washington

SeaTac is a city located in King County, Washington. SeaTac has a 2025 population of 32,075. SeaTac is currently growing at a rate of 0.43% annually and its population has increased by 2.2% since the most recent census, which recorded a population of 31,384 in 2020.

The average household income in SeaTac is $94,717 with a poverty rate of 10.38%. The median age in SeaTac is 36.8 years: 36.3 years for males, and 37.3 years for females.

Demographics

The racial composition of SeaTac includes 31.25% White, 24.29% Black or African American, 17.51% other race, 15.85% Asian, and smaller percentages for Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

White

Black or African American

Other race

Asian

Two or more races

Native Hawaiian or Pacific Islander

Native American

Race	Population	Percentage (of total)
White	9,732	31.25%
Black or African American	7,566	24.29%
Other race	5,454	17.51%
Asian	4,937	15.85%
Two or more races	2,877	9.24%
Native Hawaiian or Pacific Islander	455	1.46%
Native American	122	0.39%

SeaTac Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

SeaTac's average per capita income is $48,342. Household income levels show a median of $76,517. The poverty rate stands at 10.38%.

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	$98,869	-
Families	$90,590	$102,249
Households	$76,517	$94,717
Non Families	$54,913	$78,141

$48,342

Average Income

$76,517

Median Household Income

10.38%

Poverty Rate