SeaTac is a city located in King County Washington. SeaTac has a 2024 population of 29,652. SeaTac is currently declining at a rate of -1.45% annually and its population has decreased by -5.56% since the most recent census, which recorded a population of 31,398 in 2020.
The average household income in SeaTac is $94,261 with a poverty rate of 11.27%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in SeaTac is 36.1 years, 36 years for males, and 36.3 years for females.
According to the most recent ACS, the racial composition of SeaTac was:
White
Black or African American
Asian
Other race
Two or more races
Native Hawaiian or Pacific Islander
Native American
Household Type | Count | Average Size | Owner | Renter |
---|---|---|---|---|
All | 11,414 | 2.63 | 46.9 | 53.1 |
Non Family | 4,488 | 1.3 | 43.8 | 56.2 |
Married | 4,430 | 3.55 | 57.9 | 42.1 |
Female | 1,321 | 3.49 | 33 | 67 |
Male | 1,175 | 3.29 | 32.6 | 67.4 |
3.34
Average Family Size
2.63
Average Household Size
46.9%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
50.15% of SeaTac residents speak only English, while 49.85% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 16.28% of the population.
rate
11.27%
Overall Poverty Rate
9.04%
Male Poverty Rate
13.86%
Female Poverty Rate
The race most likely to be in poverty in SeaTac is Other, with 17.37% below the poverty level.
The race least likely to be in poverty in SeaTac is Native, with 4.14% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.18%. Among those working part-time, it was 13.49%, and for those that did not work, the poverty rate was 22.71%.
Married
Widowed
Divorced
Separated
NeverMarried
46.4%
Overall Marriage Rate
45.2%
Male Marriage Rate
48.0%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
5.93%
Veteran Poverty Rate
28.13%
Veteran Disability Rate
LaborForceParticipation
71.3%
Labor Force Participation
66%
Employment Rate
7.4%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
36.49%
Born in SeaTac
61.17%
Native Born
38.83%
Foreign Born
18.14%
Non Citizen
20.69%
Naturalized
61.17% of SeaTac residents were born in the United States, with 36.49% having been born in Washington. 18.14% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Africa.
Year | Population | Growth | Growth Rate |
---|---|---|---|
2029 | 27,469 | -437 | -1.57% |
2028 | 27,906 | -436 | -1.54% |
2027 | 28,342 | -437 | -1.52% |
2026 | 28,779 | -436 | -1.49% |
2025 | 29,215 | -437 | -1.47% |
2024 | 29,652 | -436 | -1.45% |
2023 | 30,088 | -437 | -1.43% |
2022 | 30,525 | -397 | -1.28% |
2021 | 30,922 | -476 | -1.52% |
2020 | 31,398 | 2,364 | 8.14% |
2019 | 29,034 | -123 | -0.42% |
2018 | 29,157 | -183 | -0.62% |
2017 | 29,340 | 156 | 0.53% |
2016 | 29,184 | 630 | 2.21% |
2015 | 28,554 | 176 | 0.62% |
2014 | 28,378 | 208 | 0.74% |
2013 | 28,170 | 183 | 0.65% |
2012 | 27,987 | 417 | 1.51% |
2011 | 27,570 | 571 | 2.11% |
2010 | 26,999 | 0 | 0% |
2000 | 25,496 | 2,696 | 11.82% |
1990 | 22,800 | -4,669 | -17% |