Census tract · Arapahoe County
Census Tract 859, Arapahoe County, Colorado
Census Tract 859, GEOID 08005085900, in Arapahoe County, Colorado, partly within Aurora and Centennial. 10,005 residents in the ACS 2020-2024 5-year estimates (±888); the 2020 Census counted 9,218.
Residents, 2020-2024
10,005
±888 (90% margin)
2020 Census count: 9,218
Median household income
$149,504
±$15,479 (90% margin)
Arapahoe County: $101,087
Median home value
$635,500
±$16,164 (90% margin)
Arapahoe County: $561,200
Median gross rent
$2,990
±$230 (90% margin)
Arapahoe County: $1,891
Where is Census Tract 859?
Census Tract 859 is one of 161 census tracts in Arapahoe County, Colorado. It covers 1.82 square miles of land, 5,065 residents per square mile in 2020. Its GEOID, 08005085900, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Aurora | 11% |
| Centennial | 11% |
8 census tracts border Census Tract 859: Tract 832.01 ($143,865), Tract 832.02 ($131,875), Tract 844 ($99,040), Tract 848 ($111,912), Tract 858 ($120,625), Tract 860.01 ($176,875), Tract 860.02 ($91,925) and Tract 862 ($134,209). 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 859?
The 2020-2024 American Community Survey puts Census Tract 859's population at 10,005 (±888) in 3,077 households; the 2020 Census counted 9,218 residents and 2,835 housing units.
| Measure | Tract 859 | Arapahoe County |
|---|---|---|
| Total population | 10,005 ±888 | 659,844 |
| Households | 3,077 ±246 | 257,232 |
| Average household size | 3.25 ±0.19 | 2.55 |
| Housing units | 3,349 ±195 | 269,345 |
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 859?
The median resident of Census Tract 859 is 36.7 years old; 29.3% are under 18 and 8.7% are 65 or older. The largest group is non-Hispanic white residents at 43.0%, then non-Hispanic Black residents at 18.1%. 21.6% of residents were born outside the United States.
| Measure | Tract 859 | Arapahoe County |
|---|---|---|
| Median age | 36.7 ±3.2 | 37.3 |
| Under 18 years | 29.3% ±2.9 pts | 22.6% |
| 65 years and over | 8.7% ±2.3 pts | 14.4% |
| Hispanic or Latino (any race) | 13.8% ±3.2 pts | 21.7% |
| White alone, not Hispanic | 43.0% ±4.5 pts | 55.2% |
| Black or African American alone, not Hispanic | 18.1% ±3.6 pts | 10.5% |
| Asian alone, not Hispanic | 12.5% ±4.2 pts | 6.0% |
| American Indian and Alaska Native alone, not Hispanic | 0.7% ±0.7 pts | 0.3% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.4 pts | 0.3% |
| Two or more races, not Hispanic | 9.5% ±6.0 pts | 5.5% |
| Some other race alone, not Hispanic | 2.5% ±2.2 pts | 0.5% |
| Born outside the United States | 21.6% ±4.8 pts | 16.5% |
| Speak a language other than English at home (age 5+) | 26.5% ±5.8 pts | 23.4% |
| Civilian veterans (age 18+) | 9.6% ±2.6 pts | 6.7% |
| With a disability | 7.8% ±2.4 pts | 10.9% |
| No health insurance coverage | 6.0% ±3.0 pts | 9.3% |
| High school graduate or higher (age 25+) | 93.3% ±3.0 pts | 91.9% |
| Bachelor's degree or higher (age 25+) | 51.4% ±6.3 pts | 46.5% |
| Graduate or professional degree (age 25+) | 21.4% ±4.6 pts | 18.0% |
| Lived in the same house a year earlier | 86.4% ±4.9 pts | 84.3% |
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 859 earn?
Half of the 3,077 households in Census Tract 859 earn less than $149,504 a year (±$15,479), against $101,087 across Arapahoe County: 29th highest of the county's 159 tracts with a reliable estimate. 2.9% of residents live below the poverty line.
| Measure | Tract 859 | Arapahoe County |
|---|---|---|
| Median household income | $149,504 ±$15,479 | $101,087 |
| Mean household income | $166,471 ±$10,125 | $136,289 |
| Per capita income | $50,994 ±$3,646 | $53,774 |
| People below the poverty line | 2.9% ±1.7 pts | 8.6% |
| Children under 18 below the poverty line | 1.9% ±2.3 pts | 11.9% |
| Households receiving SNAP | 2.9% ±2.1 pts | 7.7% |
| Households with a computer | 98.9% ±1.2 pts | 97.9% |
| Households with a broadband subscription | 95.3% ±2.9 pts | 94.7% |
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 859?
Owners occupy 83.8% of Census Tract 859's occupied homes and renters 16.2%. The median owner-occupied home is valued at $635,500 by its owner (±$16,164). The median renter pays $2,990 a month including utilities, and 40.8% of renters pay 35% or more of their income on rent.
| Measure | Tract 859 | Arapahoe County |
|---|---|---|
| Median home value (owner-occupied) | $635,500 ±$16,164 | $561,200 |
| Median gross rent | $2,990 ±$230 | $1,891 |
| Renters paying 35% or more of income on rent | 40.8% ±22.3 pts | 45.4% |
| Median monthly owner costs, with a mortgage | $2,762 ±$132 | $2,423 |
| Owner-occupied homes | 83.8% ±5.2 pts | 64.7% |
| Renter-occupied homes | 16.2% ±5.2 pts | 35.3% |
| Housing units | 3,349 ±195 | 269,345 |
| Single-family detached homes | 86.3% ±4.8 pts | 56.1% |
| Mobile homes | 0.0% ±1.3 pts | 0.7% |
| Built 2020 or later | 22.6% ±6.1 pts | 2.3% |
| Built 2010 to 2019 | 44.4% ±6.9 pts | 10.0% |
| Built 1939 or earlier | 0.0% ±1.3 pts | 1.7% |
| Households with no vehicle | 0.4% ±0.6 pts | 5.3% |
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 859 get to work?
69.1% of Census Tract 859's workers drive alone and 20.6% work from home. The average trip to work takes 27.7 minutes. The unemployment rate in 2020-2024 averaged 2.5%.
| Measure | Tract 859 | Arapahoe County |
|---|---|---|
| In the labor force (age 16+) | 76.2% ±4.1 pts | 71.7% |
| Unemployment rate | 2.5% ±1.5 pts | 5.0% |
| Drove alone to work | 69.1% ±5.9 pts | 65.5% |
| Carpooled | 7.5% ±3.9 pts | 7.7% |
| Public transportation | 0.9% ±1.0 pts | 2.5% |
| Walked | 0.0% ±0.8 pts | 1.4% |
| Worked from home | 20.6% ±5.9 pts | 21.0% |
| Mean travel time to work | 27.7 min ±1.7 | 27.1 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 859 compare with the other tracts in Arapahoe County?
Among Arapahoe County's tracts with a reliable estimate, Census Tract 859 ranks as shown below (1 = highest).
| Measure | In Arapahoe County |
|---|---|
| Population | 1st of 160 |
| Residents per square mile | 87th of 161 |
| Median household income | 29th of 159 |
| Per capita income | 80th of 160 |
| Median home value | 51st of 158 |
| Median gross rent | 13th of 146 |
| Poverty rate | 85th of 90 |
| Bachelor's degree or higher | 72nd of 161 |
| Median age | 90th of 160 |
| Owner-occupied share | 47th of 159 |
The tracts next to it on Arapahoe County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 830 | 26th | $155,256±$12,392 · within the margin of this tract |
| Tract 71.03 | 27th | $153,021±$10,364 · within the margin of this tract |
| Tract 56.21 | 28th | $150,083±$11,872 · within the margin of this tract |
| Tract 859 | 29th | $149,504±$15,479 |
| Tract 56.35 | 30th | $146,932±$28,070 · within the margin of this tract |
| Tract 56.24 | 31st | $143,882±$16,171 · within the margin of this tract |
| Tract 832.01 | 32nd | $143,865±$10,499 · 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 859?
Every figure for Census Tract 859 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