Census tract · King County
Census Tract 323.15, King County, Washington
Census Tract 323.15, GEOID 53033032315, in King County, Washington, mostly within Union Hill-Novelty Hill (53% of its census blocks). 5,558 residents in the ACS 2020-2024 5-year estimates (±560); the 2020 Census counted 5,586.
Residents, 2020-2024
5,558
±560 (90% margin)
2020 Census count: 5,586
Median household income
$235,139
±$54,744 (90% margin)
King County: $124,746
Median home value
$1,233,300
±$108,509 (90% margin)
King County: $859,900
Median gross rent
not published
King County: $2,092
Where is Census Tract 323.15?
Census Tract 323.15 is one of 495 census tracts in King County, Washington. It covers 17.28 square miles of land, 323 residents per square mile in 2020. Its GEOID, 53033032315, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Union Hill-Novelty Hill | 53% |
| Ames Lake | 21% |
9 census tracts border Census Tract 323.15: Tract 322.15 ($250,000 or more), Tract 323.18 ($250,000 or more), Tract 323.27 ($158,929), Tract 323.28 ($232,179), Tract 323.32 ($236,597), Tract 323.33 ($167,917), Tract 324.01 ($158,555), Tract 324.02 ($182,813) and Tract 325 ($178,080). 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 323.15?
The 2020-2024 American Community Survey puts Census Tract 323.15's population at 5,558 (±560) in 2,015 households; the 2020 Census counted 5,586 residents and 2,060 housing units.
| Measure | Tract 323.15 | Union Hill-Novelty Hill |
|---|---|---|
| Total population | 5,558 ±560 | 23,047 |
| Households | 2,015 ±146 | 8,379 |
| Average household size | 2.76 ±0.20 | 2.75 |
| Housing units | 2,029 ±148 | 8,615 |
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 323.15?
The median resident of Census Tract 323.15 is 44.1 years old; 23.4% are under 18 and 17.1% are 65 or older. The largest group is non-Hispanic white residents at 76.1%, then non-Hispanic Asian residents at 10.1%. 17.3% of residents were born outside the United States.
| Measure | Tract 323.15 | Union Hill-Novelty Hill |
|---|---|---|
| Median age | 44.1 ±4.3 | 43.9 |
| Under 18 years | 23.4% ±3.5 pts | 26.2% |
| 65 years and over | 17.1% ±4.9 pts | 20.6% |
| Hispanic or Latino (any race) | 8.5% ±5.1 pts | 5.3% |
| White alone, not Hispanic | 76.1% ±6.2 pts | 56.5% |
| Black or African American alone, not Hispanic | 0.0% ±0.7 pts | 2.3% |
| Asian alone, not Hispanic | 10.1% ±2.0 pts | 29.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.3 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Two or more races, not Hispanic | 5.2% ±2.5 pts | 5.7% |
| Some other race alone, not Hispanic | 0.0% ±0.7 pts | 0.9% |
| Born outside the United States | 17.3% ±4.5 pts | 32.6% |
| Speak a language other than English at home (age 5+) | 20.2% ±7.1 pts | 34.0% |
| Civilian veterans (age 18+) | 5.6% ±2.7 pts | 5.2% |
| With a disability | 10.5% ±3.5 pts | 7.5% |
| No health insurance coverage | 1.6% ±2.0 pts | 1.9% |
| High school graduate or higher (age 25+) | 98.3% ±1.4 pts | 98.0% |
| Bachelor's degree or higher (age 25+) | 63.4% ±5.1 pts | 71.7% |
| Graduate or professional degree (age 25+) | 19.9% ±4.8 pts | 34.8% |
| Lived in the same house a year earlier | 89.2% ±4.7 pts | 87.7% |
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 323.15 earn?
Half of the 2,015 households in Census Tract 323.15 earn less than $235,139 a year (±$54,744), against $124,746 across King County: 33rd highest of the county's 491 tracts with a reliable estimate. 3.7% of residents live below the poverty line.
| Measure | Tract 323.15 | Union Hill-Novelty Hill |
|---|---|---|
| Median household income | $235,139 ±$54,744 | $185,369 |
| Mean household income | $293,700 ±$37,853 | $271,422 |
| Per capita income | $107,141 ±$12,074 | $99,577 |
| People below the poverty line | 3.7% ±2.3 pts | 5.7% |
| Children under 18 below the poverty line | 2.0% ±2.9 pts | 7.8% |
| Households receiving SNAP | 1.3% ±1.4 pts | 2.7% |
| Households with a computer | 100.0% ±2.0 pts | 98.8% |
| Households with a broadband subscription | 98.1% ±1.7 pts | 98.3% |
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 323.15?
Owners occupy 95.1% of Census Tract 323.15's occupied homes and renters 4.9%. The median owner-occupied home is valued at $1,233,300 by its owner (±$108,509).
| Measure | Tract 323.15 | Union Hill-Novelty Hill |
|---|---|---|
| Median home value (owner-occupied) | $1,233,300 ±$108,509 | $1,218,500 |
| Renters paying 35% or more of income on rent | 69.5% ±52.4 pts | 46.9% |
| Median monthly owner costs, with a mortgage | $3,943 ±$393 | $4,000 or more |
| Owner-occupied homes | 95.1% ±3.7 pts | 83.5% |
| Renter-occupied homes | 4.9% ±3.7 pts | 16.5% |
| Housing units | 2,029 ±148 | 8,615 |
| Single-family detached homes | 93.9% ±2.5 pts | 81.7% |
| Mobile homes | 6.1% ±2.5 pts | 0.8% |
| Built 2020 or later | 0.7% ±1.2 pts | 0.3% |
| Built 2010 to 2019 | 6.1% ±4.6 pts | 12.2% |
| Built 1939 or earlier | 2.2% ±2.6 pts | 1.8% |
| Households with no vehicle | 3.2% ±2.6 pts | 3.8% |
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 323.15 get to work?
55.1% of Census Tract 323.15's workers drive alone and 39.7% work from home. The average trip to work takes 25.1 minutes.
| Measure | Tract 323.15 | Union Hill-Novelty Hill |
|---|---|---|
| In the labor force (age 16+) | 63.0% ±5.8 pts | 57.6% |
| Unemployment rate | 2.2% ±2.1 pts | 5.8% |
| Drove alone to work | 55.1% ±9.2 pts | 48.2% |
| Carpooled | 4.0% ±3.0 pts | 3.5% |
| Public transportation | 0.6% ±1.0 pts | 2.0% |
| Walked | 0.6% ±1.0 pts | 1.1% |
| Worked from home | 39.7% ±9.0 pts | 44.7% |
| Mean travel time to work | 25.1 min ±2.9 | 28.4 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 323.15 compare with the other tracts in King County?
Among King County's tracts with a reliable estimate, Census Tract 323.15 ranks as shown below (1 = highest).
| Measure | In King County | In Union Hill-Novelty Hill |
|---|---|---|
| Population | 121st of 494 | 2nd of 5 |
| Residents per square mile | 479th of 494 | 5th of 5 |
| Median household income | 33rd of 491 | 2nd of 5 |
| Per capita income | 71st of 494 | 2nd of 5 |
| Median home value | 77th of 481 | 2nd of 5 |
| Poverty rate | 288th of 316 | 1st of 1 |
| Bachelor's degree or higher | 230th of 494 | 5th of 5 |
| Median age | 64th of 494 | 2nd of 5 |
| Owner-occupied share | 10th of 483 | 3rd of 5 |
The tracts next to it on King County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 323.32 | 30th | $236,597±$28,299 · within the margin of this tract |
| Tract 16 | 31st | $236,500±$19,969 · within the margin of this tract |
| Tract 323.17 | 32nd | $236,031±$48,531 · within the margin of this tract |
| Tract 323.15 | 33rd | $235,139±$54,744 |
| Tract 64 | 34th | $232,426±$42,855 · within the margin of this tract |
| Tract 323.28 | 35th | $232,179±$70,010 · within the margin of this tract |
| Tract 323.26 | 36th | $228,083±$54,287 · 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 323.15?
1 of the 17 figures for Census Tract 323.15 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