SeaTac is a city located in King County Washington. SeaTac has a 2024 population of 31,937. SeaTac is currently growing at a rate of 0.43% annually and its population has increased by 1.76% 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.
According to the most recent ACS, the racial composition of SeaTac was:
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% |
White
Black or African American
Other race
Asian
Two or more races
Native Hawaiian or Pacific Islander
Native American
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 11,772 | 2.57 | 45.1 | 54.9 |
| Married | 4,750 | 3.49 | 51.2 | 48.8 |
| Non Family | 4,726 | 1.24 | 44.4 | 55.6 |
| Female | 1,283 | 3.57 | 28.8 | 71.2 |
| Male | 1,013 | 3.21 | 39.7 | 60.3 |
3.34
Average Family Size
2.57
Average Household Size
45.1%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 1,636 | 7.59% |
| Associates Degree | 1,705 | 7.91% |
| Bachelors Degree | 4,316 | 20.03% |
| Graduate Degree | 1,414 | 6.56% |
| High School Graduate | 6,082 | 28.23% |
| Less Than 9th Grade | 1,839 | 8.54% |
| Some College | 4,551 | 21.13% |
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 7,562 | 7,134 | 2,415 |
| Black | 4,994 | 4,333 | 1,146 |
| Asian | 3,797 | 3,237 | 1,542 |
| Hispanic | 3,791 | 2,160 | 398 |
| Other Race | 2,734 | 1,247 | 251 |
| 2+ Races | 1,553 | 1,402 | 246 |
| Islander | 303 | 251 | 54 |
| Native American | 122 | 98 | 41 |
The highest rate of high school graduation is among white people with a rate of 94.34%.
The highest rate of bachelors degrees is among asian people with a rate of 40.61%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $61,675 | $64,022 | $56,279 |
| Graduate Degree | $80,625 | $101,172 | $74,186 |
| High School Graduate | $39,598 | $42,439 | $36,714 |
| Less Than 9th Grade | $45,532 | $49,134 | $38,397 |
| Overall | $48,342 | $49,799 | $44,418 |
| Some College | $46,317 | $44,246 | $47,376 |
$48,342
Average Earnings
$49,799
Average Male
$44,418
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
49.32% of SeaTac residents speak only English, while 50.68% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 17.59% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| Hispanic | 6,848 | 956 | 13.96% |
| Black | 7,477 | 778 | 10.41% |
| White | 8,809 | 770 | 8.74% |
| Other | 5,446 | 766 | 14.07% |
| Multiple | 2,873 | 527 | 18.34% |
| Asian | 4,918 | 293 | 5.96% |
| Native | 79 | 5 | 6.33% |
| Islander | 455 | 5 | 1.1% |
10.38%
Overall Poverty Rate
7.35%
Male Poverty Rate
13.97%
Female Poverty Rate
The race most likely to be in poverty in SeaTac is Multiple, with 18.34% below the poverty level.
The race least likely to be in poverty in SeaTac is Islander, with 1.1% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.46%. Among those working part-time, it was 10.61%, and for those that did not work, the poverty rate was 18.89%.
rate
Rate | Poverty |
|---|---|
| Less Than 9th Grade | 15.72% |
| Some College | 9.71% |
| High School | 8.98% |
| Bachelors or Greater | 3.59% |
rate
Rate | Poverty |
|---|---|
| Female Unemployed | 31.03% |
| Male Unemployed | 11.5% |
| Female Employed | 6.77% |
| Male Employed | 3.82% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | $90,590 | $102,249 |
| Households | $76,517 | $94,717 |
| Married Families | $98,869 | $-999,999,999 |
| Non Families | $54,913 | $78,141 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
46.2%
Overall Marriage Rate
44.7%
Male Marriage Rate
48.1%
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
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
1,277
Number of Veterans
1,163
Male Veterans
114
Female Veterans
War | Veterans |
|---|---|
| Vietnam | 411 |
| Second Gulf War | 193 |
| First Gulf War | 168 |
| Korea | 12 |
| World War II | 5 |
count
Age Group | Veterans |
|---|---|
| 55 to 64 | 353 |
| 75+ | 353 |
| 65 to 74 | 284 |
| 35 to 54 | 163 |
| 18 to 34 | 124 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 915 | 10.67% |
| Black | 240 | 4.31% |
| 2+ Races | 75 | 4.07% |
| Other Race | 27 | 0.83% |
| Hispanic | 16 | 0.36% |
| Asian | 10 | 0.24% |
| Islander | 10 | 3.13% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
6.77%
Veteran Poverty Rate
32.54%
Veteran Disability Rate
LaborForceParticipation
69.4%
Labor Force Participation
63.6%
Employment Rate
8.3%
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
35.02%
Born in SeaTac
60.07%
Native Born
39.93%
Foreign Born
19.27%
Non Citizen
20.66%
Naturalized
60.07% of SeaTac residents were born in the United States, with 35.02% having been born in Washington. 19.27% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Africa.
Year | Population | Growth | Change |
|---|---|---|---|
| 2029 | 32,628 | 138 | 0.42% |
| 2028 | 32,490 | 138 | 0.43% |
| 2027 | 32,352 | 139 | 0.43% |
| 2026 | 32,213 | 138 | 0.43% |
| 2025 | 32,075 | 138 | 0.43% |
| 2024 | 31,937 | 138 | 0.43% |
| 2023 | 31,799 | 1,286 | 4.21% |
| 2022 | 30,513 | -402 | -1.3% |
| 2021 | 30,915 | -469 | -1.49% |
| 2020 | 31,384 | 2,350 | 8.09% |
| 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 | -9,828 | -30.12% |