Census tract · King County
Census Tract 231, King County, Washington
Census Tract 231, GEOID 53033023100, in King County, Washington, entirely within Bellevue. 4,039 residents in the ACS 2020-2024 5-year estimates (±441); the 2020 Census counted 4,158.
Residents, 2020-2024
4,039
±441 (90% margin)
2020 Census count: 4,158
Median household income
$206,705
±$37,124 (90% margin)
King County: $124,746
Median home value
$1,110,400
±$70,338 (90% margin)
King County: $859,900
Median gross rent
$3,313
±$194 (90% margin)
King County: $2,092
Where is Census Tract 231?
Census Tract 231 is one of 495 census tracts in King County, Washington. It covers 0.98 square miles of land, 4,256 residents per square mile in 2020. Its GEOID, 53033023100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Bellevue | 100% |
5 census tracts border Census Tract 231: Tract 230 ($184,332), Tract 232.02 ($99,436), Tract 233 ($180,928), Tract 234.03 ($172,891) and Tract 322.17 ($248,125). 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 231?
The 2020-2024 American Community Survey puts Census Tract 231's population at 4,039 (±441) in 1,403 households; the 2020 Census counted 4,158 residents and 1,485 housing units.
| Measure | Tract 231 | Bellevue |
|---|---|---|
| Total population | 4,039±441 | 151,847 |
| Households | 1,403±124 | 61,977 |
| Average household size | 2.79±0.25 | 2.42 |
| Housing units | 1,533±123 | 66,021 |
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 231?
The median resident of Census Tract 231 is 43.1 years old; 22.9% are under 18 and 14.9% are 65 or older. The largest group is non-Hispanic white residents at 54.7%, then non-Hispanic Asian residents at 33.6%. 37.8% of residents were born outside the United States.
| Measure | Tract 231 | Bellevue |
|---|---|---|
| Median age | 43.1±2.9 | 38.5 |
| Under 18 years | 22.9%±3.8 pts | 19.5% |
| 65 years and over | 14.9%±3.3 pts | 14.8% |
| Hispanic or Latino (any race) | 5.6%±4.2 pts | 7.9% |
| White alone, not Hispanic | 54.7%±7.0 pts | 39.9% |
| Black or African American alone, not Hispanic | 2.2%±1.6 pts | 2.6% |
| Asian alone, not Hispanic | 33.6%±6.6 pts | 42.7% |
| American Indian and Alaska Native alone, not Hispanic | 0.3%±0.4 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.0 pts | 0.3% |
| Two or more races, not Hispanic | 3.3%±2.5 pts | 5.8% |
| Some other race alone, not Hispanic | 0.2%±0.4 pts | 0.7% |
| Born outside the United States | 37.8%±6.5 pts | 43.5% |
| Speak a language other than English at home (age 5+) | 42.0%±7.7 pts | 48.8% |
| Civilian veterans (age 18+) | 3.9%±1.7 pts | 3.4% |
| With a disability | 10.5%±2.7 pts | 8.5% |
| No health insurance coverage | 4.1%±5.3 pts | 4.2% |
| High school graduate or higher (age 25+) | 98.0%±1.8 pts | 95.7% |
| Bachelor's degree or higher (age 25+) | 77.9%±5.2 pts | 72.1% |
| Graduate or professional degree (age 25+) | 38.3%±5.7 pts | 36.0% |
| Lived in the same house a year earlier | 88.8%±3.7 pts | 81.4% |
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 231 earn?
Half of the 1,403 households in Census Tract 231 earn less than $206,705 a year (±$37,124), against $124,746 across King County: 51st highest of the county's 491 tracts with a reliable estimate. 6.2% of residents live below the poverty line.
| Measure | Tract 231 | Bellevue |
|---|---|---|
| Median household income | $206,705±$37,124 | $165,576 |
| Mean household income | $287,699±$39,610 | $234,392 |
| Per capita income | $101,766±$12,498 | $97,015 |
| People below the poverty line | 6.2%±3.1 pts | 7.2% |
| Children under 18 below the poverty line | 1.5%±2.4 pts | 9.7% |
| Households receiving SNAP | 0.6%±1.0 pts | 4.4% |
| Households with a computer | 98.9%±1.4 pts | 98.9% |
| Households with a broadband subscription | 98.9%±1.4 pts | 96.8% |
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 231?
Owners occupy 78.5% of Census Tract 231's occupied homes and renters 21.5%. The median owner-occupied home is valued at $1,110,400 by its owner (±$70,338). The median renter pays $3,313 a month including utilities.
| Measure | Tract 231 | Bellevue |
|---|---|---|
| Median home value (owner-occupied) | $1,110,400±$70,338 | $1,340,300 |
| Median gross rent | $3,313±$194 | $2,572 |
| Renters paying 35% or more of income on rent | 5.6%±9.6 pts | 30.1% |
| Median monthly owner costs, with a mortgage | $3,471±$433 | $4,000 or more |
| Owner-occupied homes | 78.5%±7.1 pts | 52.0% |
| Renter-occupied homes | 21.5%±7.1 pts | 48.0% |
| Housing units | 1,533±123 | 66,021 |
| Single-family detached homes | 83.1%±5.5 pts | 46.4% |
| Mobile homes | 0.0%±2.6 pts | 0.1% |
| Built 2020 or later | 0.0%±2.6 pts | 1.3% |
| Built 2010 to 2019 | 4.5%±3.5 pts | 13.3% |
| Built 1939 or earlier | 0.5%±0.8 pts | 0.8% |
| Households with no vehicle | 1.3%±1.4 pts | 9.1% |
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 231 get to work?
44.2% of Census Tract 231's workers drive alone and 45.2% work from home. The average trip to work takes 20.1 minutes.
| Measure | Tract 231 | Bellevue |
|---|---|---|
| In the labor force (age 16+) | 59.0%±4.6 pts | 67.2% |
| Unemployment rate | 2.2%±1.8 pts | 4.2% |
| Drove alone to work | 44.2%±8.0 pts | 45.6% |
| Carpooled | 3.8%±3.4 pts | 7.4% |
| Public transportation | 2.1%±1.9 pts | 5.1% |
| Walked | 2.3%±2.1 pts | 4.5% |
| Worked from home | 45.2%±8.5 pts | 35.6% |
| Mean travel time to work | 20.1 min±2.5 | 23.6 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 231 compare with the other tracts in King County?
Among King County's tracts with a reliable estimate, Census Tract 231 ranks as shown below (1 = highest).
| Measure | In King County | In Bellevue |
|---|---|---|
| Population | 325th of 494 | 22nd of 35 |
| Residents per square mile | 313th of 494 | 20th of 35 |
| Median household income | 51st of 491 | 8th of 35 |
| Per capita income | 94th of 494 | 16th of 35 |
| Median home value | 115th of 481 | 26th of 35 |
| Median gross rent | 29th of 483 | 9th of 35 |
| Poverty rate | 217th of 316 | 11th of 19 |
| Bachelor's degree or higher | 88th of 494 | 13th of 35 |
| Median age | 83rd of 494 | 8th of 35 |
| Owner-occupied share | 129th of 483 | 8th of 35 |
The tracts next to it on King County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 27 | 48th | $212,544±$15,346 · within the margin of this tract |
| Tract 229.02 | 49th | $211,797±$29,837 · within the margin of this tract |
| Tract 323.23 | 50th | $210,804±$56,030 · within the margin of this tract |
| Tract 231 | 51st | $206,705±$37,124 |
| Tract 78 | 52nd | $205,056±$42,203 · within the margin of this tract |
| Tract 73.02 | 53rd | $205,021±$40,512 · within the margin of this tract |
| Tract 223 | 54th | $204,844±$29,838 · 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 231?
2 of the 18 figures for Census Tract 231 on this page carry a coefficient of variation over 40% and are 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