Census tract · Arapahoe County
Census Tract 831, Arapahoe County, Colorado
Census Tract 831, GEOID 08005083100, in Arapahoe County, Colorado, entirely within Aurora. 7,443 residents in the ACS 2020-2024 5-year estimates (±732); the 2020 Census counted 7,649.
Residents, 2020-2024
7,443
±732 (90% margin)
2020 Census count: 7,649
Median household income
$93,782
±$20,091 (90% margin)
Arapahoe County: $101,087
Median home value
$472,400
±$44,933 (90% margin)
Arapahoe County: $561,200
Median gross rent
$2,329
±$210 (90% margin)
Arapahoe County: $1,891
Where is Census Tract 831?
Census Tract 831 is one of 161 census tracts in Arapahoe County, Colorado. It covers 0.99 square miles of land, 7,758 residents per square mile in 2020. Its GEOID, 08005083100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Aurora | 100% |
6 census tracts border Census Tract 831: Tract 828 ($95,855), Tract 829 ($110,458), Tract 830 ($155,256), Tract 833 ($97,546), Tract 834 ($111,974) and Tract 835 ($72,788). 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 831?
The 2020-2024 American Community Survey puts Census Tract 831's population at 7,443 (±732) in 2,808 households; the 2020 Census counted 7,649 residents and 2,903 housing units.
| Measure | Tract 831 | Aurora |
|---|---|---|
| Total population | 7,443 ±732 | 394,432 |
| Households | 2,808 ±270 | 145,310 |
| Average household size | 2.65 ±0.22 | 2.70 |
| Housing units | 2,960 ±274 | 152,377 |
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 831?
The median resident of Census Tract 831 is 39.5 years old; 23.1% are under 18 and 12.3% are 65 or older. The largest group is non-Hispanic white residents at 36.3%, then non-Hispanic Asian residents at 21.4%. 35.4% of residents were born outside the United States.
| Measure | Tract 831 | Aurora |
|---|---|---|
| Median age | 39.5 ±2.1 | 35.3 |
| Under 18 years | 23.1% ±3.7 pts | 23.9% |
| 65 years and over | 12.3% ±3.2 pts | 12.4% |
| Hispanic or Latino (any race) | 15.2% ±6.2 pts | 31.4% |
| White alone, not Hispanic | 36.3% ±8.5 pts | 40.9% |
| Black or African American alone, not Hispanic | 16.7% ±8.1 pts | 15.3% |
| Asian alone, not Hispanic | 21.4% ±6.2 pts | 6.0% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.6 pts | 0.3% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.6 pts | 0.4% |
| Two or more races, not Hispanic | 10.4% ±3.7 pts | 5.2% |
| Some other race alone, not Hispanic | 0.0% ±0.6 pts | 0.6% |
| Born outside the United States | 35.4% ±9.4 pts | 22.4% |
| Speak a language other than English at home (age 5+) | 43.5% ±9.3 pts | 33.1% |
| Civilian veterans (age 18+) | 4.5% ±2.1 pts | 7.1% |
| With a disability | 9.0% ±3.1 pts | 11.6% |
| No health insurance coverage | 7.1% ±3.3 pts | 13.7% |
| High school graduate or higher (age 25+) | 87.0% ±6.1 pts | 86.3% |
| Bachelor's degree or higher (age 25+) | 32.2% ±6.5 pts | 33.6% |
| Graduate or professional degree (age 25+) | 9.9% ±4.2 pts | 11.9% |
| Lived in the same house a year earlier | 82.0% ±10.2 pts | 83.3% |
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 831 earn?
Half of the 2,808 households in Census Tract 831 earn less than $93,782 a year (±$20,091), against $101,087 across Arapahoe County: 95th highest of the county's 159 tracts with a reliable estimate.
| Measure | Tract 831 | Aurora |
|---|---|---|
| Median household income | $93,782 ±$20,091 | $88,368 |
| Mean household income | $102,727 ±$11,171 | $112,543 |
| Per capita income | $39,240 ±$4,212 | $42,105 |
| People below the poverty line | 8.3% ±7.1 pts | 11.9% |
| Children under 18 below the poverty line | 11.3% ±18.7 pts | 18.1% |
| Households receiving SNAP | 3.6% ±3.6 pts | 11.1% |
| Households with a computer | 100.0% ±1.5 pts | 97.6% |
| Households with a broadband subscription | 99.3% ±1.5 pts | 93.6% |
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 831?
Owners occupy 64.9% of Census Tract 831's occupied homes and renters 35.1%. The median owner-occupied home is valued at $472,400 by its owner (±$44,933). The median renter pays $2,329 a month including utilities, and 42.6% of renters pay 35% or more of their income on rent.
| Measure | Tract 831 | Aurora |
|---|---|---|
| Median home value (owner-occupied) | $472,400 ±$44,933 | $469,100 |
| Median gross rent | $2,329 ±$210 | $1,835 |
| Renters paying 35% or more of income on rent | 42.6% ±16.0 pts | 50.0% |
| Median monthly owner costs, with a mortgage | $2,165 ±$253 | $2,217 |
| Owner-occupied homes | 64.9% ±9.5 pts | 62.4% |
| Renter-occupied homes | 35.1% ±9.5 pts | 37.6% |
| Housing units | 2,960 ±274 | 152,377 |
| Single-family detached homes | 50.9% ±8.2 pts | 53.1% |
| Mobile homes | 0.0% ±1.4 pts | 1.5% |
| Built 2020 or later | 0.4% ±0.7 pts | 3.2% |
| Built 2010 to 2019 | 24.7% ±7.4 pts | 11.6% |
| Built 1939 or earlier | 0.0% ±1.4 pts | 1.0% |
| Households with no vehicle | 2.8% ±3.0 pts | 6.6% |
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 831 get to work?
77.3% of Census Tract 831's workers drive alone and 15.2% work from home. The average trip to work takes 29.9 minutes. The unemployment rate in 2020-2024 averaged 4.9%.
| Measure | Tract 831 | Aurora |
|---|---|---|
| In the labor force (age 16+) | 74.0% ±4.2 pts | 72.0% |
| Unemployment rate | 4.9% ±1.8 pts | 5.9% |
| Drove alone to work | 77.3% ±7.5 pts | 66.5% |
| Carpooled | 4.5% ±3.0 pts | 10.2% |
| Public transportation | 0.0% ±1.0 pts | 3.4% |
| Walked | 0.9% ±1.5 pts | 1.5% |
| Worked from home | 15.2% ±6.3 pts | 16.5% |
| Mean travel time to work | 29.9 min ±2.2 | 28.6 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 831 compare with the other tracts in Arapahoe County?
Among Arapahoe County's tracts with a reliable estimate, Census Tract 831 ranks as shown below (1 = highest).
| Measure | In Arapahoe County | In Aurora |
|---|---|---|
| Population | 5th of 160 | 6th of 89 |
| Residents per square mile | 27th of 161 | 23rd of 90 |
| Median household income | 95th of 159 | 39th of 89 |
| Per capita income | 114th of 160 | 41st of 89 |
| Median home value | 99th of 158 | 32nd of 87 |
| Median gross rent | 42nd of 146 | 21st of 85 |
| Bachelor's degree or higher | 118th of 161 | 43rd of 89 |
| Median age | 63rd of 160 | 16th of 89 |
| Owner-occupied share | 96th of 159 | 51st of 89 |
The tracts next to it on Arapahoe County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 850 | 92nd | $94,934±$20,552 · within the margin of this tract |
| Tract 55.53 | 93rd | $94,416±$20,050 · within the margin of this tract |
| Tract 62 | 94th | $93,917±$24,418 · within the margin of this tract |
| Tract 831 | 95th | $93,782±$20,091 |
| Tract 841 | 96th | $93,621±$19,075 · within the margin of this tract |
| Tract 825 | 97th | $93,482±$6,078 · within the margin of this tract |
| Tract 827 | 98th | $92,287±$12,657 · 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 831?
1 of the 18 figures for Census Tract 831 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