Census tract · King County
Census Tract 273, King County, Washington
Census Tract 273, GEOID 53033027300, in King County, Washington, mostly within SeaTac (53% of its census blocks). 7,194 residents in the ACS 2020-2024 5-year estimates (±690); the 2020 Census counted 6,670.
Residents, 2020-2024
7,194
±690 (90% margin)
2020 Census count: 6,670
Median household income
$110,147
±$17,301 (90% margin)
King County: $124,746
Median home value
$535,300
±$60,464 (90% margin)
King County: $859,900
Median gross rent
$2,066
±$145 (90% margin)
King County: $2,092
Where is Census Tract 273?
Census Tract 273 is one of 495 census tracts in King County, Washington. It covers 1.37 square miles of land, 4,865 residents per square mile in 2020. Its GEOID, 53033027300, names it uniquely (how tract numbers and GEOIDs work).
6 census tracts border Census Tract 273: Tract 271 ($72,386), Tract 272 ($79,871), Tract 274 ($94,617), Tract 280 ($85,482), Tract 281 ($68,284) and Tract 282 ($68,702). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 273?
The 2020-2024 American Community Survey puts Census Tract 273's population at 7,194 (±690) in 1,994 households; the 2020 Census counted 6,670 residents and 2,088 housing units.
| Measure | Tract 273 | SeaTac |
|---|---|---|
| Total population | 7,194 ±690 | 32,414 |
| Households | 1,994 ±190 | 12,134 |
| Average household size | 3.60 ±0.30 | 2.60 |
| Housing units | 1,994 ±190 | 12,886 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 273?
The median resident of Census Tract 273 is 34.2 years old; 22.7% are under 18 and 7.8% are 65 or older. The largest group is non-Hispanic Asian residents at 31.9%, then non-Hispanic white residents at 27.0%. 40.9% of residents were born outside the United States.
| Measure | Tract 273 | SeaTac |
|---|---|---|
| Median age | 34.2 ±4.0 | 36.8 |
| Under 18 years | 22.7% ±4.8 pts | 22.5% |
| 65 years and over | 7.8% ±2.3 pts | 12.8% |
| Hispanic or Latino (any race) | 22.5% ±5.2 pts | 22.8% |
| White alone, not Hispanic | 27.0% ±7.2 pts | 27.0% |
| Black or African American alone, not Hispanic | 11.4% ±3.3 pts | 24.4% |
| Asian alone, not Hispanic | 31.9% ±8.7 pts | 17.4% |
| American Indian and Alaska Native alone, not Hispanic | 1.9% ±2.4 pts | 0.3% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 2.4% ±4.3 pts | 1.3% |
| Two or more races, not Hispanic | 2.6% ±1.9 pts | 6.7% |
| Some other race alone, not Hispanic | 0.3% ±0.5 pts | 0.2% |
| Born outside the United States | 40.9% ±5.2 pts | 39.9% |
| Speak a language other than English at home (age 5+) | 50.7% ±8.5 pts | 50.5% |
| Civilian veterans (age 18+) | 1.4% ±1.3 pts | 4.9% |
| With a disability | 11.5% ±3.7 pts | 13.4% |
| No health insurance coverage | 16.0% ±7.3 pts | 11.6% |
| High school graduate or higher (age 25+) | 66.9% ±6.5 pts | 83.9% |
| Bachelor's degree or higher (age 25+) | 22.6% ±5.7 pts | 26.4% |
| Graduate or professional degree (age 25+) | 5.9% ±2.9 pts | 6.7% |
| Lived in the same house a year earlier | 94.4% ±5.0 pts | 80.5% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Census Tract 273 earn?
Half of the 1,994 households in Census Tract 273 earn less than $110,147 a year (±$17,301), against $124,746 across King County: 336th highest of the county's 491 tracts with a reliable estimate. 17.9% of residents live below the poverty line.
| Measure | Tract 273 | SeaTac |
|---|---|---|
| Median household income | $110,147 ±$17,301 | $81,104 |
| Mean household income | $114,810 ±$11,305 | $98,134 |
| Per capita income | $33,355 ±$4,086 | $38,330 |
| People below the poverty line | 17.9% ±8.7 pts | 9.3% |
| Children under 18 below the poverty line | 31.6% ±16.7 pts | 8.8% |
| Households receiving SNAP | 12.5% ±7.5 pts | 14.8% |
| Households with a computer | 95.4% ±4.0 pts | 97.3% |
| Households with a broadband subscription | 91.0% ±5.9 pts | 91.9% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Census Tract 273?
Owners occupy 63.0% of Census Tract 273's occupied homes and renters 37.0%. The median owner-occupied home is valued at $535,300 by its owner (±$60,464). The median renter pays $2,066 a month including utilities.
| Measure | Tract 273 | SeaTac |
|---|---|---|
| Median home value (owner-occupied) | $535,300 ±$60,464 | $519,700 |
| Median gross rent | $2,066 ±$145 | $1,660 |
| Renters paying 35% or more of income on rent | 27.1% ±18.1 pts | 48.5% |
| Median monthly owner costs, with a mortgage | $2,553 ±$201 | $2,304 |
| Owner-occupied homes | 63.0% ±8.2 pts | 46.5% |
| Renter-occupied homes | 37.0% ±8.2 pts | 53.5% |
| Housing units | 1,994 ±190 | 12,886 |
| Single-family detached homes | 62.3% ±8.4 pts | 42.3% |
| Mobile homes | 1.5% ±2.3 pts | 4.6% |
| Built 2020 or later | 0.8% ±1.3 pts | 2.5% |
| Built 2010 to 2019 | 6.4% ±4.6 pts | 8.9% |
| Built 1939 or earlier | 9.7% ±6.4 pts | 4.6% |
| Households with no vehicle | 6.9% ±4.9 pts | 10.6% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Census Tract 273 get to work?
69.9% of Census Tract 273's workers drive alone and 10.2% work from home. The average trip to work takes 24.7 minutes. The unemployment rate in 2020-2024 averaged 5.1%.
| Measure | Tract 273 | SeaTac |
|---|---|---|
| In the labor force (age 16+) | 69.0% ±6.5 pts | 69.1% |
| Unemployment rate | 5.1% ±3.1 pts | 7.0% |
| Drove alone to work | 69.9% ±7.2 pts | 58.5% |
| Carpooled | 15.5% ±5.2 pts | 16.6% |
| Public transportation | 4.4% ±3.9 pts | 6.5% |
| Walked | 0.0% ±1.1 pts | 5.2% |
| Worked from home | 10.2% ±4.4 pts | 11.5% |
| Mean travel time to work | 24.7 min ±2.6 | 25.4 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
How does Census Tract 273 compare with the other tracts in King County?
Among King County's tracts with a reliable estimate, Census Tract 273 ranks as shown below (1 = highest).
| Measure | In King County | In SeaTac |
|---|---|---|
| Population | 17th of 494 | 2nd of 7 |
| Residents per square mile | 277th of 494 | 3rd of 7 |
| Median household income | 336th of 491 | 2nd of 7 |
| Per capita income | 472nd of 494 | 6th of 7 |
| Median home value | 428th of 481 | 6th of 7 |
| Median gross rent | 278th of 483 | 1st of 7 |
| Poverty rate | 44th of 316 | 1st of 6 |
| Bachelor's degree or higher | 460th of 494 | 5th of 7 |
| Median age | 383rd of 494 | 5th of 7 |
| Owner-occupied share | 236th of 483 | 2nd of 7 |
The tracts next to it on King County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 36.02 | 333rd | $110,991±$19,628 · within the margin of this tract |
| Tract 312.02 | 334th | $110,986±$10,174 · within the margin of this tract |
| Tract 70.02 | 335th | $110,327±$25,580 · within the margin of this tract |
| Tract 273 | 336th | $110,147±$17,301 |
| Tract 303.11 | 337th | $109,909±$20,303 · within the margin of this tract |
| Tract 112 | 338th | $109,805±$33,247 · within the margin of this tract |
| Tract 312.08 | 339th | $109,732±$18,713 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 273?
Every figure for Census Tract 273 on this page has a coefficient of variation under 40%, the Census Bureau's threshold for a usable estimate.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections