Census tract · Cook County
Census Tract 8031, Cook County, Illinois
Census Tract 8031, GEOID 17031803100, in Cook County, Illinois, entirely within Arlington Heights and Wheeling Township. 3,545 residents in the ACS 2020-2024 5-year estimates (±406); the 2020 Census counted 3,616.
Residents, 2020-2024
3,545
±406 (90% margin)
2020 Census count: 3,616
Median household income
$170,089
±$21,693 (90% margin)
Cook County: $83,498
Median home value
$454,900
±$28,415 (90% margin)
Cook County: $324,500
Median gross rent
$2,809
±$346 (90% margin)
Cook County: $1,435
Where is Census Tract 8031?
Census Tract 8031 is one of 1,332 census tracts in Cook County, Illinois. It covers 0.67 square miles of land, 5,389 residents per square mile in 2020. Its GEOID, 17031803100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Arlington Heights | 100% |
| Wheeling Township | 100% |
4 census tracts border Census Tract 8031: Tract 8029 ($179,773), Tract 8030.17 ($108,724), Tract 8032 ($100,422) and Tract 8033 ($96,587). 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 8031?
The 2020-2024 American Community Survey puts Census Tract 8031's population at 3,545 (±406) in 1,155 households; the 2020 Census counted 3,616 residents and 1,256 housing units.
| Measure | Tract 8031 | Arlington Heights |
|---|---|---|
| Total population | 3,545±406 | 76,005 |
| Households | 1,155±98 | 31,466 |
| Average household size | 3.06±0.19 | 2.39 |
| Housing units | 1,166±98 | 33,005 |
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 8031?
The median resident of Census Tract 8031 is 39.8 years old; 29.8% are under 18 and 15.1% are 65 or older. The largest group is non-Hispanic white residents at 80.8%, then Hispanic or Latino residents (of any race) at 9.9%. 11.0% of residents were born outside the United States.
| Measure | Tract 8031 | Arlington Heights |
|---|---|---|
| Median age | 39.8±1.9 | 42.6 |
| Under 18 years | 29.8%±2.5 pts | 22.6% |
| 65 years and over | 15.1%±3.3 pts | 20.0% |
| Hispanic or Latino (any race) | 9.9%±7.0 pts | 8.5% |
| White alone, not Hispanic | 80.8%±7.5 pts | 75.0% |
| Black or African American alone, not Hispanic | 0.3%±0.5 pts | 2.3% |
| Asian alone, not Hispanic | 4.9%±3.0 pts | 10.4% |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±1.1 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.1 pts | 0.0% |
| Two or more races, not Hispanic | 3.8%±3.4 pts | 3.3% |
| Some other race alone, not Hispanic | 0.3%±0.4 pts | 0.3% |
| Born outside the United States | 11.0%±3.7 pts | 21.5% |
| Speak a language other than English at home (age 5+) | 19.3%±6.4 pts | 28.8% |
| Civilian veterans (age 18+) | 3.8%±2.0 pts | 4.1% |
| With a disability | 8.4%±3.9 pts | 9.6% |
| No health insurance coverage | 4.5%±2.8 pts | 4.8% |
| High school graduate or higher (age 25+) | 97.0%±2.5 pts | 96.2% |
| Bachelor's degree or higher (age 25+) | 64.3%±8.6 pts | 60.4% |
| Graduate or professional degree (age 25+) | 25.2%±6.7 pts | 26.3% |
| Lived in the same house a year earlier | 95.5%±2.7 pts | 89.6% |
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 8031 earn?
Half of the 1,155 households in Census Tract 8031 earn less than $170,089 a year (±$21,693), against $83,498 across Cook County: 72nd highest of the county's 1,258 tracts with a reliable estimate. 2.4% of residents live below the poverty line.
| Measure | Tract 8031 | Arlington Heights |
|---|---|---|
| Median household income | $170,089±$21,693 | $116,723 |
| Mean household income | $209,648±$24,336 | $151,283 |
| Per capita income | $69,308±$8,416 | $62,826 |
| People below the poverty line | 2.4%±1.3 pts | 6.0% |
| Children under 18 below the poverty line | 1.0%±1.3 pts | 4.3% |
| Households receiving SNAP | 1.4%±1.8 pts | 4.8% |
| Households with a computer | 99.0%±1.5 pts | 97.1% |
| Households with a broadband subscription | 98.5%±1.7 pts | 95.2% |
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 8031?
Owners occupy 92.9% of Census Tract 8031's occupied homes and renters 7.1%. The median owner-occupied home is valued at $454,900 by its owner (±$28,415). The median renter pays $2,809 a month including utilities, and 54.9% of renters pay 35% or more of their income on rent.
| Measure | Tract 8031 | Arlington Heights |
|---|---|---|
| Median home value (owner-occupied) | $454,900±$28,415 | $414,500 |
| Median gross rent | $2,809±$346 | $1,760 |
| Renters paying 35% or more of income on rent | 54.9%±30.6 pts | 31.6% |
| Median monthly owner costs, with a mortgage | $3,017±$241 | $2,642 |
| Owner-occupied homes | 92.9%±4.2 pts | 74.0% |
| Renter-occupied homes | 7.1%±4.2 pts | 26.0% |
| Housing units | 1,166±98 | 33,005 |
| Single-family detached homes | 95.8%±2.8 pts | 53.5% |
| Mobile homes | 0.0%±3.2 pts | 0.1% |
| Built 2020 or later | 0.5%±0.9 pts | 0.2% |
| Built 2010 to 2019 | 3.9%±3.2 pts | 2.2% |
| Built 1939 or earlier | 8.7%±4.0 pts | 4.9% |
| Households with no vehicle | 1.0%±1.5 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 8031 get to work?
51.5% of Census Tract 8031's workers drive alone and 38.1% work from home. The average trip to work takes 28.9 minutes.
| Measure | Tract 8031 | Arlington Heights |
|---|---|---|
| In the labor force (age 16+) | 72.0%±4.4 pts | 66.8% |
| Unemployment rate | 7.1%±4.7 pts | 3.5% |
| Drove alone to work | 51.5%±7.7 pts | 62.0% |
| Carpooled | 4.5%±2.9 pts | 6.3% |
| Public transportation | 2.0%±1.5 pts | 4.3% |
| Walked | 2.3%±1.4 pts | 1.0% |
| Worked from home | 38.1%±8.6 pts | 25.1% |
| Mean travel time to work | 28.9 min±4.1 | 27.7 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 8031 compare with the other tracts in Cook County?
Among Cook County's tracts with a reliable estimate, Census Tract 8031 ranks as shown below (1 = highest).
| Measure | In Cook County | In Arlington Heights |
|---|---|---|
| Population | 727th of 1,328 | 13th of 17 |
| Residents per square mile | 971st of 1,331 | 8th of 17 |
| Median household income | 72nd of 1,258 | 3rd of 17 |
| Per capita income | 237th of 1,325 | 2nd of 17 |
| Median home value | 280th of 1,279 | 4th of 17 |
| Median gross rent | 32nd of 1,254 | 2nd of 16 |
| Poverty rate | 898th of 905 | 11th of 12 |
| Bachelor's degree or higher | 283rd of 1,264 | 6th of 17 |
| Median age | 549th of 1,327 | 12th of 17 |
| Owner-occupied share | 79th of 1,300 | 2nd of 17 |
The tracts next to it on Cook County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 2406 | 69th | $170,625±$30,738 · within the margin of this tract |
| Tract 814.02 | 70th | $170,333±$47,591 · within the margin of this tract |
| Tract 8130 | 71st | $170,286±$14,028 · within the margin of this tract |
| Tract 8031 | 72nd | $170,089±$21,693 |
| Tract 629 | 73rd | $169,906±$27,185 · within the margin of this tract |
| Tract 8088 | 74th | $169,625±$27,278 · within the margin of this tract |
| Tract 8014 | 75th | $169,318±$27,778 · 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 8031?
2 of the 18 figures for Census Tract 8031 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