Census tract · King County
Census Tract 307, King County, Washington
Census Tract 307, GEOID 53033030700, in King County, Washington, entirely within Auburn. 4,216 residents in the ACS 2020-2024 5-year estimates (±535); the 2020 Census counted 4,317.
Residents, 2020-2024
4,216
±535 (90% margin)
2020 Census count: 4,317
Median household income
$73,333
±$20,656 (90% margin)
King County: $124,746
Median home value
$416,200
±$30,176 (90% margin)
King County: $859,900
Median gross rent
$1,819
±$308 (90% margin)
King County: $2,092
Where is Census Tract 307?
Census Tract 307 is one of 495 census tracts in King County, Washington. It covers 0.60 square miles of land, 7,195 residents per square mile in 2020. Its GEOID, 53033030700, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Auburn | 100% |
4 census tracts border Census Tract 307: Tract 306 ($90,972), Tract 308.01 ($72,993), Tract 308.02 ($81,688) and Tract 311.01 ($81,142). 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 307?
The 2020-2024 American Community Survey puts Census Tract 307's population at 4,216 (±535) in 1,692 households; the 2020 Census counted 4,317 residents and 1,696 housing units.
| Measure | Tract 307 | Auburn |
|---|---|---|
| Total population | 4,216±535 | 85,676 |
| Households | 1,692±224 | 30,393 |
| Average household size | 2.45±0.26 | 2.79 |
| Housing units | 1,713±225 | 31,800 |
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 307?
The median resident of Census Tract 307 is 38.3 years old; 18.7% are under 18 and 13.9% are 65 or older. The largest group is non-Hispanic white residents at 39.1%, then Hispanic or Latino residents (of any race) at 24.7%. 26.5% of residents were born outside the United States.
| Measure | Tract 307 | Auburn |
|---|---|---|
| Median age | 38.3±5.2 | 36.0 |
| Under 18 years | 18.7%±4.5 pts | 24.9% |
| 65 years and over | 13.9%±4.3 pts | 12.5% |
| Hispanic or Latino (any race) | 24.7%±8.6 pts | 20.8% |
| White alone, not Hispanic | 39.1%±8.6 pts | 48.2% |
| Black or African American alone, not Hispanic | 7.7%±4.7 pts | 6.6% |
| Asian alone, not Hispanic | 6.3%±4.0 pts | 12.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.3%±0.5 pts | 1.6% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 9.1%±8.0 pts | 3.3% |
| Two or more races, not Hispanic | 12.8%±7.1 pts | 7.1% |
| Some other race alone, not Hispanic | 0.1%±0.2 pts | 0.5% |
| Born outside the United States | 26.5%±6.6 pts | 25.1% |
| Speak a language other than English at home (age 5+) | 39.9%±9.9 pts | 35.5% |
| Civilian veterans (age 18+) | 11.3%±6.0 pts | 7.7% |
| With a disability | 19.4%±6.8 pts | 13.2% |
| No health insurance coverage | 11.7%±5.7 pts | 8.4% |
| High school graduate or higher (age 25+) | 86.7%±4.2 pts | 88.4% |
| Bachelor's degree or higher (age 25+) | 14.8%±4.5 pts | 25.6% |
| Graduate or professional degree (age 25+) | 2.9%±1.9 pts | 8.1% |
| Lived in the same house a year earlier | 86.4%±5.0 pts | 88.6% |
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 307 earn?
Half of the 1,692 households in Census Tract 307 earn less than $73,333 a year (±$20,656), against $124,746 across King County: 451st highest of the county's 491 tracts with a reliable estimate. 9.3% of residents live below the poverty line.
| Measure | Tract 307 | Auburn |
|---|---|---|
| Median household income | $73,333±$20,656 | $97,884 |
| Mean household income | $83,633±$11,143 | $116,385 |
| Per capita income | $36,007±$4,050 | $42,587 |
| People below the poverty line | 9.3%±4.9 pts | 8.9% |
| Children under 18 below the poverty line | 13.7%±13.8 pts | 13.1% |
| Households receiving SNAP | 13.7%±5.9 pts | 14.9% |
| Households with a computer | 95.1%±4.4 pts | 98.0% |
| Households with a broadband subscription | 89.2%±7.1 pts | 94.5% |
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 307?
Owners occupy 51.9% of Census Tract 307's occupied homes and renters 48.1%. The median owner-occupied home is valued at $416,200 by its owner (±$30,176). The median renter pays $1,819 a month including utilities, and 65.1% of renters pay 35% or more of their income on rent.
| Measure | Tract 307 | Auburn |
|---|---|---|
| Median home value (owner-occupied) | $416,200±$30,176 | $547,900 |
| Median gross rent | $1,819±$308 | $1,786 |
| Renters paying 35% or more of income on rent | 65.1%±14.9 pts | 44.1% |
| Median monthly owner costs, with a mortgage | $2,167±$168 | $2,541 |
| Owner-occupied homes | 51.9%±10.3 pts | 60.6% |
| Renter-occupied homes | 48.1%±10.3 pts | 39.4% |
| Housing units | 1,713±225 | 31,800 |
| Single-family detached homes | 53.9%±10.2 pts | 51.1% |
| Mobile homes | 0.0%±2.3 pts | 6.6% |
| Built 2020 or later | 0.0%±2.3 pts | 1.7% |
| Built 2010 to 2019 | 2.2%±2.0 pts | 13.6% |
| Built 1939 or earlier | 12.3%±6.4 pts | 2.8% |
| Households with no vehicle | 9.0%±5.2 pts | 6.9% |
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 307 get to work?
79.4% of Census Tract 307's workers drive alone. The average trip to work takes 27.8 minutes. The unemployment rate in 2020-2024 averaged 7.3%.
| Measure | Tract 307 | Auburn |
|---|---|---|
| In the labor force (age 16+) | 75.9%±6.2 pts | 69.4% |
| Unemployment rate | 7.3%±4.6 pts | 6.0% |
| Drove alone to work | 79.4%±8.0 pts | 70.9% |
| Carpooled | 12.0%±7.3 pts | 9.1% |
| Public transportation | 0.9%±1.2 pts | 2.6% |
| Walked | 4.3%±3.3 pts | 1.8% |
| Worked from home | 3.5%±2.5 pts | 14.4% |
| Mean travel time to work | 27.8 min±4.5 | 30.5 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 307 compare with the other tracts in King County?
Among King County's tracts with a reliable estimate, Census Tract 307 ranks as shown below (1 = highest).
| Measure | In King County | In Auburn |
|---|---|---|
| Population | 295th of 494 | 15th of 18 |
| Residents per square mile | 176th of 494 | 3rd of 18 |
| Median household income | 451st of 491 | 16th of 18 |
| Per capita income | 452nd of 494 | 12th of 18 |
| Median home value | 471st of 481 | 14th of 17 |
| Median gross rent | 375th of 483 | 11th of 18 |
| Poverty rate | 148th of 316 | 9th of 12 |
| Bachelor's degree or higher | 490th of 494 | 16th of 18 |
| Median age | 248th of 494 | 8th of 18 |
| Owner-occupied share | 309th of 483 | 13th of 17 |
The tracts next to it on King County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 74.06 | 448th | $73,788±$12,848 · within the margin of this tract |
| Tract 217.02 | 449th | $73,649±$25,894 · within the margin of this tract |
| Tract 279.02 | 450th | $73,393±$20,549 · within the margin of this tract |
| Tract 307 | 451st | $73,333±$20,656 |
| Tract 297.01 | 452nd | $73,182±$20,760 · within the margin of this tract |
| Tract 308.01 | 453rd | $72,993±$8,007 · within the margin of this tract |
| Tract 271 | 454th | $72,386±$23,564 · 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 307?
1 of the 18 figures for Census Tract 307 on this page carries a coefficient of variation over 40% and is marked with a ring: they come from a small sample, so read them as rough.
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