Census tract · Kankakee County
Census Tract 121, Kankakee County, Illinois
Census Tract 121, GEOID 17091012100, in Kankakee County, Illinois, mostly within Kankakee (95% of its census blocks). 3,166 residents in the ACS 2020-2024 5-year estimates (±333); the 2020 Census counted 3,352.
Residents, 2020-2024
3,166
±333 (90% margin)
2020 Census count: 3,352
Median household income
$46,053
±$11,853 (90% margin)
Kankakee County: $71,281
Median home value
$123,200
±$11,382 (90% margin)
Kankakee County: $192,600
Median gross rent
not published
Kankakee County: $1,097
Where is Census Tract 121?
Census Tract 121 is one of 30 census tracts in Kankakee County, Illinois. It covers 1.71 square miles of land, 1,956 residents per square mile in 2020. Its GEOID, 17091012100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Kankakee | 95% |
| Kankakee Township | 95% |
| Limestone Township, Kankakee County | 5% |
4 census tracts border Census Tract 121: Tract 104 ($110,524), Tract 117 ($36,974), Tract 122 ($67,772) and Tract 123 ($44,063). 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 121?
The 2020-2024 American Community Survey puts Census Tract 121's population at 3,166 (±333) in 1,470 households; the 2020 Census counted 3,352 residents and 1,549 housing units.
| Measure | Tract 121 | Kankakee |
|---|---|---|
| Total population | 3,166 ±333 | 23,996 |
| Households | 1,470 ±202 | 9,122 |
| Average household size | 2.07 ±0.17 | 2.48 |
| Housing units | 1,647 ±208 | 11,049 |
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 121?
The median resident of Census Tract 121 is 44.4 years old; 15.9% are under 18 and 19.6% are 65 or older. The largest group is non-Hispanic white residents at 65.1%, then non-Hispanic Black residents at 23.6%. 6.3% of residents were born outside the United States.
| Measure | Tract 121 | Kankakee |
|---|---|---|
| Median age | 44.4 ±3.3 | 36.1 |
| Under 18 years | 15.9% ±3.1 pts | 25.1% |
| 65 years and over | 19.6% ±5.3 pts | 14.3% |
| Hispanic or Latino (any race) | 5.1% ±3.1 pts | 24.5% |
| White alone, not Hispanic | 65.1% ±8.6 pts | 31.3% |
| Black or African American alone, not Hispanic | 23.6% ±7.8 pts | 39.8% |
| Asian alone, not Hispanic | 4.7% ±3.1 pts | 0.9% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.2 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.2 pts | 0.0% |
| Two or more races, not Hispanic | 1.5% ±1.3 pts | 3.4% |
| Some other race alone, not Hispanic | 0.0% ±1.2 pts | 0.1% |
| Born outside the United States | 6.3% ±3.5 pts | 13.4% |
| Speak a language other than English at home (age 5+) | 6.1% ±3.6 pts | 23.2% |
| Civilian veterans (age 18+) | 6.9% ±2.8 pts | 5.2% |
| With a disability | 25.7% ±6.0 pts | 18.8% |
| No health insurance coverage | 9.6% ±5.6 pts | 8.6% |
| High school graduate or higher (age 25+) | 92.1% ±3.3 pts | 82.1% |
| Bachelor's degree or higher (age 25+) | 19.0% ±5.4 pts | 13.0% |
| Graduate or professional degree (age 25+) | 7.9% ±3.8 pts | 5.4% |
| Lived in the same house a year earlier | 88.9% ±5.6 pts | 93.3% |
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 121 earn?
Half of the 1,470 households in Census Tract 121 earn less than $46,053 a year (±$11,853), against $71,281 across Kankakee County: 24th highest of the county's 30 tracts with a reliable estimate. 21.4% of residents live below the poverty line.
| Measure | Tract 121 | Kankakee |
|---|---|---|
| Median household income | $46,053 ±$11,853 | $47,514 |
| Mean household income | $58,055 ±$7,931 | $64,304 |
| Per capita income | $27,920 ±$2,958 | $25,563 |
| People below the poverty line | 21.4% ±5.5 pts | 25.5% |
| Children under 18 below the poverty line | 49.8% ±17.3 pts | 32.4% |
| Households receiving SNAP | 12.0% ±7.7 pts | 29.5% |
| Households with a computer | 91.9% ±4.6 pts | 92.4% |
| Households with a broadband subscription | 84.6% ±6.3 pts | 84.6% |
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 121?
Owners occupy 52.4% of Census Tract 121's occupied homes and renters 47.6%. The median owner-occupied home is valued at $123,200 by its owner (±$11,382).
| Measure | Tract 121 | Kankakee |
|---|---|---|
| Median home value (owner-occupied) | $123,200 ±$11,382 | $104,900 |
| Renters paying 35% or more of income on rent | 54.8% ±18.1 pts | 47.8% |
| Median monthly owner costs, with a mortgage | $1,421 ±$193 | $1,331 |
| Owner-occupied homes | 52.4% ±9.9 pts | 50.8% |
| Renter-occupied homes | 47.6% ±9.9 pts | 49.2% |
| Housing units | 1,647 ±208 | 11,049 |
| Single-family detached homes | 58.2% ±8.9 pts | 60.8% |
| Mobile homes | 0.8% ±1.3 pts | 3.3% |
| Built 2020 or later | 2.4% ±3.7 pts | 0.5% |
| Built 2010 to 2019 | 1.1% ±1.3 pts | 0.8% |
| Built 1939 or earlier | 15.1% ±6.9 pts | 28.7% |
| Households with no vehicle | 11.8% ±5.8 pts | 14.7% |
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 121 get to work?
62.3% of Census Tract 121's workers drive alone and 10.0% work from home. The average trip to work takes 24.8 minutes.
| Measure | Tract 121 | Kankakee |
|---|---|---|
| In the labor force (age 16+) | 59.0% ±6.1 pts | 57.0% |
| Unemployment rate | 2.1% ±3.7 pts | 7.6% |
| Drove alone to work | 62.3% ±10.0 pts | 75.1% |
| Carpooled | 22.4% ±7.1 pts | 12.9% |
| Public transportation | 0.0% ±2.5 pts | 2.7% |
| Walked | 4.0% ±3.9 pts | 2.6% |
| Worked from home | 10.0% ±6.3 pts | 4.7% |
| Mean travel time to work | 24.8 min ±3.7 | 22.0 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 121 compare with the other tracts in Kankakee County?
Among Kankakee County's tracts with a reliable estimate, Census Tract 121 ranks as shown below (1 = highest).
| Measure | In Kankakee County | In Kankakee |
|---|---|---|
| Population | 16th of 30 | 3rd of 9 |
| Residents per square mile | 9th of 30 | 6th of 9 |
| Median household income | 24th of 30 | 4th of 9 |
| Per capita income | 22nd of 30 | 3rd of 9 |
| Median home value | 24th of 30 | 4th of 9 |
| Poverty rate | 8th of 29 | 7th of 9 |
| Bachelor's degree or higher | 11th of 29 | 1st of 8 |
| Median age | 7th of 30 | 1st of 9 |
| Owner-occupied share | 24th of 30 | 5th of 9 |
The tracts next to it on Kankakee County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 119 | 21st | $62,401±$11,283 · within the margin of this tract |
| Tract 120 | 22nd | $58,919±$11,382 · within the margin of this tract |
| Tract 118 | 23rd | $56,152±$5,566 · within the margin of this tract |
| Tract 121 | 24th | $46,053±$11,853 |
| Tract 123 | 25th | $44,063±$25,677 · within the margin of this tract |
| Tract 116 | 26th | $43,107±$2,726 · within the margin of this tract |
| Tract 117 | 27th | $36,974±$10,543 · 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 121?
1 of the 17 figures for Census Tract 121 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