PlainCities

Census tract · Arapahoe County

Census Tract 56.31, Arapahoe County, Colorado

Census Tract 56.31, GEOID 08005005631, in Arapahoe County, Colorado, entirely within Centennial. 3,077 residents in the ACS 2020-2024 5-year estimates (±381); the 2020 Census counted 3,182.

Residents, 2020-2024

3,077

±381 (90% margin)
2020 Census count: 3,182

Median household income

$173,438

±$51,169 (90% margin)
Arapahoe County: $101,087

Median home value

$622,300

±$13,123 (90% margin)
Arapahoe County: $561,200

Median gross rent

$3,300

±$302 (90% margin)
Arapahoe County: $1,891

Where is Census Tract 56.31?

Census Tract 56.31 is one of 161 census tracts in Arapahoe County, Colorado. It covers 0.65 square miles of land, 4,926 residents per square mile in 2020. Its GEOID, 08005005631, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 56.31 lies in (share of its 2020 census blocks)
PlaceShare of the tract
Centennial100%
Census Tract 56.31 (marked with a dot) in Arapahoe County, Colorado. Boundaries: Census Bureau 2024.
56.2656.3056.32141.07 56.31 0.5 mi
Census Tract 56.31 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000. Dashed: tracts outside Arapahoe County.

4 census tracts border Census Tract 56.31: Tract 56.26 ($91,563), Tract 56.30 ($131,233), Tract 56.32 ($164,427) and Tract 141.07 in Douglas County ($155,600). 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 56.31?

The 2020-2024 American Community Survey puts Census Tract 56.31's population at 3,077 (±381) in 1,277 households; the 2020 Census counted 3,182 residents and 1,218 housing units.

Counts, ACS 2020-2024 5-year estimates
MeasureTract 56.31CentennialArapahoe CountyColorado
Total population3,077±381108,201659,8445,862,189
Households1,277±17242,233257,2322,374,218
Average household size2.39±0.142.532.552.42
Housing units1,298±17743,291269,3452,589,053

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 56.31?

The median resident of Census Tract 56.31 is 47.0 years old; 21.7% are under 18 and 28.5% are 65 or older. The largest group is non-Hispanic white residents at 81.4%, then non-Hispanic residents of two or more races at 7.5%. 4.7% of residents were born outside the United States.

Age, origin, education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
MeasureTract 56.31CentennialArapahoe CountyColorado
Median age47.0±4.142.037.337.7
Under 18 years21.7%±4.0 pts21.8%22.6%21.0%
65 years and over28.5%±6.7 pts18.9%14.4%15.6%
Hispanic or Latino (any race)6.9%±3.3 pts10.3%21.7%22.5%
White alone, not Hispanic81.4%±7.3 pts74.1%55.2%64.8%
Black or African American alone, not Hispanic1.1%±0.9 pts2.8%10.5%3.8%
Asian alone, not Hispanic3.0%±2.4 pts6.4%6.0%3.2%
American Indian and Alaska Native alone, not Hispanic0.0%±1.4 pts0.2%0.3%0.4%
Native Hawaiian and Other Pacific Islander alone, not Hispanic0.0%±1.4 pts0.2%0.3%0.1%
Two or more races, not Hispanic7.5%±6.1 pts5.6%5.5%4.6%
Some other race alone, not Hispanic0.0%±1.4 pts0.5%0.5%0.5%
Born outside the United States4.7%±2.4 pts9.9%16.5%9.8%
Speak a language other than English at home (age 5+)7.1%±3.3 pts12.5%23.4%16.2%
Civilian veterans (age 18+)10.3%±5.3 pts7.2%6.7%7.5%
With a disability11.4%±5.9 pts9.1%10.9%11.4%
No health insurance coverage4.5%±6.1 pts3.8%9.3%7.7%
High school graduate or higher (age 25+)99.2%±0.8 pts96.9%91.9%92.9%
Bachelor's degree or higher (age 25+)72.5%±7.1 pts62.6%46.5%45.7%
Graduate or professional degree (age 25+)28.8%±7.6 pts24.9%18.0%17.6%
Lived in the same house a year earlier90.9%±5.1 pts89.2%84.3%84.1%

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 56.31 earn?

Half of the 1,277 households in Census Tract 56.31 earn less than $173,438 a year (±$51,169), against $101,087 across Arapahoe County: 19th highest of the county's 159 tracts with a reliable estimate.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
MeasureTract 56.31CentennialArapahoe CountyColorado
Median household income$173,438±$51,169$131,928$101,087$95,470
Mean household income$180,512±$21,758$167,169$136,289$128,255
Per capita income$75,222±$10,525$65,940$53,774$52,636
People below the poverty line1.0%±0.8 pts3.3%8.6%9.4%
Children under 18 below the poverty line0.0%±6.2 pts2.9%11.9%11.1%
Households receiving SNAP0.0%±3.3 pts2.7%7.7%8.5%
Households with a computer98.9%±1.2 pts98.7%97.9%97.2%
Households with a broadband subscription99.0%±1.1 pts96.9%94.7%93.5%

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 56.31?

Owners occupy 94.0% of Census Tract 56.31's occupied homes and renters 6.0%. The median owner-occupied home is valued at $622,300 by its owner (±$13,123). The median renter pays $3,300 a month including utilities.

Housing, ACS 2020-2024 5-year estimates
MeasureTract 56.31CentennialArapahoe CountyColorado
Median home value (owner-occupied)$622,300±$13,123$658,100$561,200$539,400
Median gross rent$3,300±$302$2,148$1,891$1,761
Renters paying 35% or more of income on rent0.0%±38.9 pts38.0%45.4%42.7%
Median monthly owner costs, with a mortgage$2,620±$189$2,672$2,423$2,326
Owner-occupied homes94.0%±4.0 pts80.6%64.7%66.2%
Renter-occupied homes6.0%±4.0 pts19.4%35.3%33.8%
Housing units1,298±17743,291269,3452,589,053
Single-family detached homes90.7%±3.3 pts73.4%56.1%61.4%
Mobile homes0.5%±0.9 pts0.2%0.7%3.5%
Built 2020 or later0.0%±3.2 pts1.6%2.3%3.0%
Built 2010 to 20190.5%±0.7 pts5.9%10.0%12.8%
Built 1939 or earlier0.0%±3.2 pts0.5%1.7%7.0%
Households with no vehicle0.0%±3.3 pts2.9%5.3%5.2%

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 56.31 get to work?

61.6% of Census Tract 56.31's workers drive alone and 27.4% work from home. The average trip to work takes 23.5 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
MeasureTract 56.31CentennialArapahoe CountyColorado
In the labor force (age 16+)61.0%±7.2 pts69.5%71.7%68.6%
Unemployment rate6.6%±5.1 pts4.6%5.0%4.6%
Drove alone to work61.6%±9.6 pts63.6%65.5%65.1%
Carpooled6.9%±5.1 pts5.7%7.7%7.7%
Public transportation3.1%±2.6 pts0.9%2.5%1.6%
Walked0.0%±2.9 pts1.6%1.4%2.5%
Worked from home27.4%±8.0 pts26.9%21.0%21.0%
Mean travel time to work23.5 min±2.725.9 min27.1 min25.2 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 56.31 compare with the other tracts in Arapahoe County?

Among Arapahoe County's tracts with a reliable estimate, Census Tract 56.31 ranks as shown below (1 = highest).

Census Tract 56.31's rank among the tracts of Arapahoe County and of Centennial
MeasureIn Arapahoe CountyIn Centennial
Population114th of 16024th of 30
Residents per square mile89th of 16113th of 30
Median household income19th of 1598th of 30
Per capita income21st of 1607th of 30
Median home value56th of 15820th of 29
Median gross rent5th of 1463rd of 24
Bachelor's degree or higher17th of 1617th of 30
Median age20th of 1605th of 30
Owner-occupied share22nd of 15911th of 29

The tracts next to it on Arapahoe County's income ladder

Median household income, ACS 2020-2024 5-year estimates
TractRankMedian household incomeResidents
Tract 860.0116th$176,875±$51,532 · within the margin of this tract4,035
Tract 67.1117th$176,327±$20,247 · within the margin of this tract4,152
Tract 85618th$175,625±$10,301 · within the margin of this tract3,229
Tract 56.3119th$173,438±$51,1693,077
Tract 67.0920th$172,108±$31,511 · within the margin of this tract5,856
Tract 67.0821st$170,556±$28,960 · within the margin of this tract5,100
Tract 71.1222nd$169,286±$22,068 · within the margin of this tract8,579

"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 56.31?

3 of the 18 figures for Census Tract 56.31 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