SeaTac Flag

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 34,683 . SeaTac is currently growing at a rate of 1.94% annually and its population has increased by 10.5% since the most recent census, which recorded a population of 31,387 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. For every 100 females there are 120.8 males.

34.7K
Total Population
3,446
Density (mi²)
659 1.94%
Growth

SeaTac Population

SeaTac Population

Data after 2023 is projected based on recent change

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 (31.25%)

Black or African American (24.29%)

Other race (17.51%)

Asian (15.85%)

Two or more races (9.24%)

Native Hawaiian or Pacific Islander (1.46%)

Native American (0.39%)

Race
Population
Percentage (of total)
White9,73231.25%
Black or African American7,56624.29%
Other race5,45417.51%
Asian4,93715.85%
Two or more races2,8779.24%
Native Hawaiian or Pacific Islander4551.46%
Native American1220.39%

SeaTac Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)