SeaTac, WA
Population 31,143 · Washington
About SeaTac, WA
SeaTac is a mid-sized city in Washington with a population of 31,143 residents. The median household income is $76,517 per year, which is above the national average. The median age in SeaTac is 36.8 years.
Housing in SeaTac has a median home value of $483,200 and median monthly rent of $1,637. Of the 12,424 total housing units, renting is more common than owning, with 5,304 owner-occupied and 6,468 renter-occupied units.
The unemployment rate in SeaTac is 8.3% and the poverty rate is 10.4%. 26.6% of residents hold a bachelor's degree or higher. The average commute time is 25.6 minutes.
How SeaTac Ranks in Washington
Cost of Living in SeaTac, WA
Compared to national averages, SeaTac has a median household income of $76,517 (2% above the national median of $75,149). Home values average $483,200, which is 97% above the national median. Monthly rent at $1,637 is 41% above the US average of $1,163. Within Washington, SeaTac's income is 16% below the state average of $90,795, and home values are 5% above the state median of $460,491.
Why Live in SeaTac, WA?
SeaTac offers a strong local economy with a median household income of $76,517, well above the national average, and a low poverty rate of 10.4%, better than the national average.
Potential considerations include a competitive housing market where the typical home costs $483,200. However, SeaTac’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
SeaTac has a population of 31,143 with a median age of 36.8 years. Compare SeaTac with other cities to see how it stacks up, or explore all cities in Washington.
Similar Cities Near SeaTac
Cities in Washington with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Pullman | 31,939 | $45,097 | $401,700 | Compare |
| Des Moines | 32,545 | $89,787 | $539,800 | Compare |
| Orchards | 29,716 | $96,893 | $437,100 | Compare |
| Walla Walla | 33,766 | $65,493 | $356,600 | Compare |
| Maple Valley | 28,121 | $147,546 | $672,000 | Compare |
| Spanaway | 34,322 | $94,028 | $401,000 | Compare |
| University Place | 34,850 | $94,952 | $578,100 | Compare |
| Graham | 35,090 | $115,501 | $472,800 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Washington
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about SeaTac
What is the population of SeaTac, WA?
The population of SeaTac, WA is 31,143 according to the latest Census data.
What is the median household income in SeaTac?
The median household income in SeaTac, WA is $76,517 per year.
What is the median home value in SeaTac?
The median home value in SeaTac, WA is $483,200.
What is the average rent in SeaTac?
The median monthly rent in SeaTac, WA is $1,637.
What is the unemployment rate in SeaTac?
The unemployment rate in SeaTac, WA is 8.3%.