Census tract · Cook County
Census Tract 4105, Cook County, Illinois
Census Tract 4105, GEOID 17031410500, in Cook County, Illinois, entirely within Chicago. 2,887 residents in the ACS 2020-2024 5-year estimates (±439); the 2020 Census counted 2,922.
Residents, 2020-2024
2,887
±439 (90% margin)
2020 Census count: 2,922
Median household income
$65,240
±$11,304 (90% margin)
Cook County: $83,498
Median home value
$402,600
±$84,855 (90% margin)
Cook County: $324,500
Median gross rent
$1,620
±$177 (90% margin)
Cook County: $1,435
Where is Census Tract 4105?
Census Tract 4105 is one of 1,332 census tracts in Cook County, Illinois. It covers 0.10 square miles of land, 28,647 residents per square mile in 2020. Its GEOID, 17031410500, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Chicago | 100% |
5 census tracts border Census Tract 4105: Tract 4003 ($90,716), Tract 4106 ($49,475), Tract 8361, Tract 8362 and Tract 8363 ($52,917). 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 4105?
The 2020-2024 American Community Survey puts Census Tract 4105's population at 2,887 (±439) in 1,521 households; the 2020 Census counted 2,922 residents and 1,646 housing units.
| Measure | Tract 4105 | Chicago |
|---|---|---|
| Total population | 2,887±439 | 2,711,226 |
| Households | 1,521±156 | 1,160,205 |
| Average household size | 1.88±0.21 | 2.29 |
| Housing units | 1,702±127 | 1,277,054 |
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 4105?
The median resident of Census Tract 4105 is 32.1 years old; 22.7% are under 18 and 7.4% are 65 or older. The largest group is non-Hispanic Black residents at 46.9%, then non-Hispanic white residents at 21.5%. 21.6% of residents were born outside the United States.
| Measure | Tract 4105 | Chicago |
|---|---|---|
| Median age | 32.1±2.9 | 35.8 |
| Under 18 years | 22.7%±7.4 pts | 19.4% |
| 65 years and over | 7.4%±4.0 pts | 13.8% |
| Hispanic or Latino (any race) | 7.4%±5.1 pts | 29.7% |
| White alone, not Hispanic | 21.5%±8.6 pts | 32.1% |
| Black or African American alone, not Hispanic | 46.9%±12.4 pts | 27.4% |
| Asian alone, not Hispanic | 15.7%±6.2 pts | 7.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.2%±0.3 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±1.3 pts | 0.0% |
| Two or more races, not Hispanic | 7.6%±4.8 pts | 3.0% |
| Some other race alone, not Hispanic | 0.8%±1.1 pts | 0.4% |
| Born outside the United States | 21.6%±6.4 pts | 20.9% |
| Speak a language other than English at home (age 5+) | 27.1%±8.3 pts | 35.4% |
| Civilian veterans (age 18+) | 1.6%±1.3 pts | 2.8% |
| With a disability | 12.0%±5.0 pts | 12.1% |
| No health insurance coverage | 6.1%±3.8 pts | 9.8% |
| High school graduate or higher (age 25+) | 93.2%±4.5 pts | 87.2% |
| Bachelor's degree or higher (age 25+) | 59.6%±9.7 pts | 44.3% |
| Graduate or professional degree (age 25+) | 37.1%±9.9 pts | 19.0% |
| Lived in the same house a year earlier | 83.9%±6.6 pts | 86.0% |
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 4105 earn?
Half of the 1,521 households in Census Tract 4105 earn less than $65,240 a year (±$11,304), against $83,498 across Cook County: 875th highest of the county's 1,258 tracts with a reliable estimate. 29.9% of residents live below the poverty line.
| Measure | Tract 4105 | Chicago |
|---|---|---|
| Median household income | $65,240±$11,304 | $77,902 |
| Mean household income | $84,140±$13,665 | $116,016 |
| Per capita income | $43,964±$8,850 | $50,086 |
| People below the poverty line | 29.9%±13.1 pts | 16.8% |
| Children under 18 below the poverty line | 52.6%±29.8 pts | 23.6% |
| Households receiving SNAP | 19.8%±9.1 pts | 18.9% |
| Households with a computer | 94.1%±4.1 pts | 94.9% |
| Households with a broadband subscription | 92.5%±4.6 pts | 89.1% |
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 4105?
Owners occupy 30.8% of Census Tract 4105's occupied homes and renters 69.2%. The median owner-occupied home is valued at $402,600 by its owner (±$84,855). The median renter pays $1,620 a month including utilities, and 55.8% of renters pay 35% or more of their income on rent.
| Measure | Tract 4105 | Chicago |
|---|---|---|
| Median home value (owner-occupied) | $402,600±$84,855 | $334,100 |
| Median gross rent | $1,620±$177 | $1,440 |
| Renters paying 35% or more of income on rent | 55.8%±12.8 pts | 39.3% |
| Median monthly owner costs, with a mortgage | $2,770±$592 | $2,339 |
| Owner-occupied homes | 30.8%±8.0 pts | 46.0% |
| Renter-occupied homes | 69.2%±8.0 pts | 54.0% |
| Housing units | 1,702±127 | 1,277,054 |
| Single-family detached homes | 5.4%±4.1 pts | 25.6% |
| Mobile homes | 0.0%±2.2 pts | 0.2% |
| Built 2020 or later | 2.3%±3.3 pts | 0.8% |
| Built 2010 to 2019 | 0.0%±2.2 pts | 5.5% |
| Built 1939 or earlier | 42.6%±8.1 pts | 38.8% |
| Households with no vehicle | 35.0%±8.8 pts | 26.6% |
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 4105 get to work?
24.9% of Census Tract 4105's workers drive alone and 16.7% work from home. The average trip to work takes 26.6 minutes.
| Measure | Tract 4105 | Chicago |
|---|---|---|
| In the labor force (age 16+) | 69.8%±8.8 pts | 67.6% |
| Unemployment rate | 6.0%±4.3 pts | 8.0% |
| Drove alone to work | 24.9%±9.4 pts | 44.7% |
| Carpooled | 2.8%±2.4 pts | 7.3% |
| Public transportation | 23.6%±10.6 pts | 17.7% |
| Walked | 23.8%±8.6 pts | 5.8% |
| Worked from home | 16.7%±6.3 pts | 21.0% |
| Mean travel time to work | 26.6 min±4.9 | 33.1 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 4105 compare with the other tracts in Cook County?
Among Cook County's tracts with a reliable estimate, Census Tract 4105 ranks as shown below (1 = highest).
| Measure | In Cook County | In Chicago |
|---|---|---|
| Population | 907th of 1,328 | 436th of 789 |
| Residents per square mile | 120th of 1,331 | 119th of 792 |
| Median household income | 875th of 1,258 | 442nd of 725 |
| Per capita income | 573rd of 1,325 | 320th of 786 |
| Median home value | 382nd of 1,279 | 249th of 749 |
| Median gross rent | 395th of 1,254 | 207th of 758 |
| Poverty rate | 148th of 905 | 133rd of 587 |
| Bachelor's degree or higher | 328th of 1,264 | 222nd of 736 |
| Median age | 1,133rd of 1,327 | 621st of 788 |
| Owner-occupied share | 1,125th of 1,300 | 602nd of 762 |
The tracts next to it on Cook County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 8306 | 872nd | $65,599±$9,990 · within the margin of this tract |
| Tract 8358 | 873rd | $65,536±$20,950 · within the margin of this tract |
| Tract 8238.06 | 874th | $65,431±$11,285 · within the margin of this tract |
| Tract 4105 | 875th | $65,240±$11,304 |
| Tract 8230.01 | 876th | $64,963±$15,579 · within the margin of this tract |
| Tract 201 | 877th | $64,904±$20,863 · within the margin of this tract |
| Tract 6304 | 878th | $64,736±$12,149 · 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 4105?
1 of the 18 figures for Census Tract 4105 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