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

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