SeaTac city, Washington demographics
Population: 30,867
Median age: 36.1
Median household income: 73,540
SeaTac is a city in King County, Washington, United States.
Demographics, population, home values, social and economic characteristics of SeaTac city, WA.
Population
| 2021 | 30,867 |
| 2020 | 29,102 |
| 2019 | 29,019 |
| 2018 | 28,925 |
| 2017 | 28,597 |
| 2016 | 28,298 |
| 2015 | 27,859 |
| 2014 | 27,606 |
| 2013 | 27,303 |
| 2012 | 27,003 |
| 2011 | 26,735 |
| 2010 | 26,433 |
Census data for SeaTac city, Washington
Demographic and housing estimates in SeaTac city, Washington
| Total population | 30,867 |
| Male | 16,750 |
| Female | 14,117 |
| Total population | 30,867 |
| Under 5 years | 1,764 |
| 5 to 9 years | 2,038 |
| 10 to 14 years | 2,032 |
| 15 to 19 years | 1,485 |
| 20 to 24 years | 1,871 |
| 25 to 34 years | 5,636 |
| 35 to 44 years | 5,104 |
| 45 to 54 years | 3,689 |
| 55 to 59 years | 1,842 |
| 60 to 64 years | 1,709 |
| 65 to 74 years | 2,517 |
| 75 to 84 years | 815 |
| 85 years and over | 365 |
| Median age (years) | 36.1 |
| Under 18 years | 6,896 |
| 16 years and over | 24,484 |
| 18 years and over | 23,971 |
| 21 years and over | 23,292 |
| 62 years and over | 4,801 |
| 65 years and over | 3,697 |
| Total population | 30,867 |
| One race | 28,329 |
| White | 11,588 |
| Black or African American | 6,878 |
| American Indian and Alaska Native | 257 |
| Asian | 4,168 |
| Native Hawaiian and Other Pacific Islander | 993 |
| Some other race | 4,445 |
| Two or more races | 2,538 |
| Citizen, VOTING AGE 18 and over population | 18,845 |
| Male Citizen, VOTING AGE 18 and over population | 10,569 |
| Female Citizen, VOTING AGE 18 and over population | 8,276 |
Social characteristics in SeaTac city, Washington
| Total households | 11,170 |
| Family households (families) | 4,384 |
| Married-couple family | 909 |
| Male householder, no wife present, family | 2,993 |
| Female householder, no husband present, family | 1,967 |
| Nonfamily households | 2,884 |
| Average household size | 2,614 |
| Average family size | 2.66 |
Economic characteristics in SeaTac city, Washington
| Total households | 11,170 |
| Less than $10,000 | 463 |
| $10,000 to $14,999 | 236 |
| $15,000 to $24,999 | 442 |
| $25,000 to $34,999 | 1,163 |
| $35,000 to $49,999 | 1,254 |
| $50,000 to $74,999 | 2,100 |
| $75,000 to $99,999 | 1,936 |
| $100,000 to $149,999 | 2,139 |
| $150,000 to $199,999 | 887 |
| $200,000 or more | 550 |
| Median household income (dollars) | 73,540 |
Housing characteristics in SeaTac city, Washington
| Total housing units | 11,782 |
| Occupied housing units | 11,170 |
| Vacant housing units | 612 |
| Total housing units | 11,782 |
| 1-unit, detached | 5,267 |
| 1-unit, attached | 346 |
| 2 units | 224 |
| 3 or 4 units | 554 |
| 5 to 9 units | 1,132 |
| 10 to 19 units | 1,606 |
| 20 or more units | 1,927 |
| Mobile home | 726 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 11,782 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 602 |
| Built 2000 to 2009 | 1,084 |
| Built 1990 to 1999 | 602 |
| Built 1980 to 1989 | 1,641 |
| Built 1970 to 1979 | 1,724 |
| Built 1960 to 1969 | 2,919 |
| Built 1950 to 1959 | 1,881 |
| Built 1940 to 1949 | 874 |
| Built 1939 or earlier | 455 |
| Total housing units | 11,782 |
| 1 room | 288 |
| 2 rooms | 817 |
| 3 rooms | 2,128 |
| 4 rooms | 2,854 |
| 5 rooms | 1,844 |
| 6 rooms | 1,474 |
| 7 rooms | 951 |
| 8 rooms | 497 |
| 9 rooms or more | 929 |
| Median rooms | 4.4 |
| Total housing units | 11,782 |
| No bedroom | 323 |
| 1 bedroom | 2,663 |
| 2 bedrooms | 3,958 |
| 3 bedrooms | 2,945 |
| 4 bedrooms | 1,326 |
| 5 or more bedrooms | 567 |
| Occupied housing units | 11,170 |
| Owner-occupied | 5,479 |
| Renter-occupied | 5,691 |
| Average household size of owner-occupied unit | 2.66 |
| Average household size of renter-occupied unit | 2.67 |
| Occupied housing units | 11,170 |
| Moved in 2017 or later | 1,228 |
| Moved in 2015 to 2016 | 4,006 |
| Moved in 2010 to 2014 | 2,397 |
| Moved in 2000 to 2009 | 1,644 |
| Moved in 1990 to 1999 | 878 |
| Moved in 1989 and earlier | 1,017 |
| Owner-occupied units | 5,479 |
| Less than $50,000 | 513 |
| $50,000 to $99,999 | 176 |
| $100,000 to $149,999 | 85 |
| $150,000 to $199,999 | 87 |
| $200,000 to $299,999 | 750 |
| $300,000 to $499,999 | 2,930 |
| $500,000 to $999,999 | 872 |
| $1,000,000 or more | 66 |
| Median (dollars) | 364,400 |
| Owner-occupied units | 5,479 |
| Housing units with a mortgage | 3,652 |
| Housing units without a mortgage | 1,827 |
| Occupied units paying rent | 5,663 |
| Less than $500 | 174 |
| $500 to $999 | 733 |
| $1,000 to $1,499 | 1,897 |
| $1,500 to $1,999 | 2,161 |
| $2,000 to $2,499 | 481 |
| $2,500 to $2,999 | 171 |
| $3,000 or more | 46 |
| Median (dollars) | 1,506 |
| No rent paid | 28 |
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