SeaTac

Population: 31,143
Median household income: $76,517
Median home value: $483,200

Located in King County, Washington, SeaTac is a community with a population of 31,143. The median household income of $76,517 is below the King County median ($122,148).

Between 2019 and 2023, SeaTac's population grew 7.3% from 29,019 to 31,143, while its median home value rose 50.4% from $321,300 to $483,200.

60.0% of workers drive to work alone. 43.7% of homes are single-family detached houses.

Demographics

ACS 2019–2023

Population: 31,143
Median age: 36.8 yrs
Median household income: $76,517
Median home value: $483,200
Median gross rent: $1,637
Housing units: 12,424
Homeownership rate: 45.1%
Bachelor's degree or higher: 26.6%
Unemployment rate: 8.3%

Trends

ACS 5-year · 2019–2023

Population

29,01931,143

Median household income

$63,009$76,517

Median home value

$321,300$483,200

Median gross rent

$1,286$1,637

Year	Population	Median household income	Median home value	Median gross rent
2019	29,019	$63,009	$321,300	$1,286
2020	29,102	$66,131	$338,000	$1,364
2021	30,867	$73,540	$364,400	$1,506
2022	30,927	$79,433	$448,200	$1,626
2023	31,143	$76,517	$483,200	$1,637

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 56.0%

5 to 1717.5%

18 to 247.3%

25 to 3416.2%

35 to 4417.6%

45 to 5410.9%

55 to 6411.2%

65 to 748.5%

75 and over4.8%

	Count	Share
Under 5	1,857	6.0%
5 to 17	5,457	17.5%
18 to 24	2,286	7.3%
25 to 34	5,050	16.2%
35 to 44	5,481	17.6%
45 to 54	3,384	10.9%
55 to 64	3,483	11.2%
65 to 74	2,650	8.5%
75 and over	1,495	4.8%

Race & ethnicity

	Count	Share
White (non-Hispanic)	9,123	29.3%
Black or African American	7,437	23.9%
American Indian & Alaska Native	87	0.3%
Asian	4,927	15.8%
Native Hawaiian & Pacific Islander	455	1.5%
Some other race	79	0.3%
Two or more races	1,935	6.2%
Hispanic or Latino (any race)	7,100	22.8%

Educational attainment (age 25+)

No high school diploma16.1%

High school graduate28.2%

Some college or associate's29.0%

Bachelor's degree20.0%

Graduate or professional degree6.6%

	Count	Share
No high school diploma	3,475	16.1%
High school graduate	6,082	28.2%
Some college or associate's	6,256	29.0%
Bachelor's degree	4,316	20.0%
Graduate or professional degree	1,414	6.6%

Commute to work

Mean travel time to work: 26 min

Drove alone60.0%

Carpooled15.7%

Public transit6.9%

Walked4.3%

Bicycle0.0%

Worked from home10.8%

Other means2.2%

How workers get to work

	Count	Share
Drove alone	8,933	60.0%
Carpooled	2,345	15.7%
Public transit	1,035	6.9%
Walked	646	4.3%
Bicycle	0	0.0%
Worked from home	1,604	10.8%
Other means	333	2.2%

Travel time

	Count	Share
Under 15 min	2,928	22.0%
15 to 29 min	5,349	40.2%
30 to 44 min	2,956	22.2%
45 to 59 min	1,082	8.1%
60+ min	977	7.4%

Households

Average household size: 2.57
Poverty rate: 10.4% (3,158 of 30,422)

	Count	Share
Family households	7,046	59.9%
Nonfamily households	4,726	40.1%

Housing

Median year structure built: 1971

Occupancy

	Count	Share
Occupied	11,772	94.8%
Vacant	652	5.2%

Tenure (of occupied units)

	Count	Share
Owner-occupied	5,304	45.1%
Renter-occupied	6,468	54.9%

1-unit, detached43.7%

1-unit, attached2.7%

2 to 4 units6.8%

5 to 19 units22.1%

20 or more units19.5%

Mobile home & other5.2%

Units in structure

	Count	Share
1-unit, detached	5,425	43.7%
1-unit, attached	339	2.7%
2 to 4 units	844	6.8%
5 to 19 units	2,746	22.1%
20 or more units	2,423	19.5%
Mobile home & other	647	5.2%

Geography

Place GEOID: 5362288
Type (LSAD): 25
Land area: 10 sq mi
Water area: 0.18 sq mi
Center point: 47.4434, -122.2983