Kankakee, Illinois demographics

Kankakee, IL demographics: median age 36.1; 13.0% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Kankakee city, Illinois · Incorporated city · GEOID 1738934. The survey estimates a population of 23,996 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Kankakee is 36.1 years, with a 90% margin of error of 1.4 years. There are 9,122 households (±375). Age and household distributions show how these totals are composed; they do not establish which neighborhood suits a particular person.

Every count and share is an estimate. “±” is a 90% margin of error (MOE); pp means percentage points. Derived shares use the category count divided by the named universe. Aggregated category MOEs and percentage MOEs are approximate. A margin larger than half its estimate is flagged as low precision. Blank source uncertainty is shown as unavailable, never zero.

Age distribution and sex

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe	City estimate ± MOE	State estimate ± MOE	U.S. estimate ± MOE
Median age Total population · years	36.1 ±1.4	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 23,996
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	6,011 ±491	25.1% ±2.0 pp	21.8%	22.0%
18–34	5,672 ±460	23.6% ±1.9 pp	22.7%	22.8%
35–64	8,880 ±620	37.0% ±2.5 pp	38.5%	38.0%
65 and older	3,433 ±368	14.3% ±1.5 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 23,996
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	12,231 ±448	51.0% ±1.5 pp	49.4%	49.5%
Female	11,765 ±490	49.0% ±1.8 pp	50.6%	50.5%

The age groups are mutually exclusive and cover the entire population. The sex categories follow this ACS table’s published classification; they are not a survey of gender identity.

Race and Hispanic origin

Race · B02001 · ACS 2020–2024 Total population: 23,996
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	10,512 ±657	43.8% ±2.6 pp	61.0%	61.0%
Black or African American alone	9,597 ±670	40.0% ±2.7 pp	13.6%	12.2%
American Indian and Alaska Native alone	115 ±152 · low precision	0.5% ±0.6 pp · low precision	0.6%	0.9%
Asian alone	209 ±107 · low precision	0.9% ±0.4 pp · low precision	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	1,298 ±429	5.4% ±1.8 pp	7.9%	7.1%
Two or more races	2,265 ±585	9.4% ±2.4 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 23,996
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	18,118 ±647	75.5% ±2.2 pp	81.2%	80.7%
Hispanic or Latino	5,878 ±596	24.5% ±2.4 pp	18.8%	19.3%

Hispanic origin and race are separate questions. People of Hispanic or Latino origin may be of any race and appear in both tables. Do not add the Hispanic share to race shares. Race alone and two-or-more-race groups are the mutually exclusive categories of the race table.

Household types, children and living alone

Household types · B11001 · ACS 2020–2024 Households: 9,122
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	2,779 ±271	30.5% ±2.7 pp	45.3%	46.9%
Other family: male householder, no spouse present	633 ±183	6.9% ±2.0 pp	4.9%	5.1%
Other family: female householder, no spouse present	1,999 ±266	21.9% ±2.8 pp	11.9%	12.2%
Nonfamily: householder living alone	3,115 ±398	34.1% ±4.1 pp	31.2%	28.7%
Nonfamily: householder not living alone	596 ±174	6.5% ±1.9 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 9,122
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	3,035 ±305	33.3% ±3.1 pp	28.6%	29.5%
Households without people under 18	6,087 ±383	66.7% ±3.2 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 9,122
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	3,115 ±398	34.1% ±4.1 pp	31.2%	28.7%
Two-person households	2,218 ±310	24.3% ±3.3 pp	32.3%	33.8%
Three-person households	1,685 ±273	18.5% ±2.9 pp	14.7%	15.3%
Four-person households	1,184 ±257	13.0% ±2.8 pp	12.6%	12.6%
Five-person households	517 ±185	5.7% ±2.0 pp	5.8%	5.9%
Six-person households	344 ±162	3.8% ±1.8 pp	2.1%	2.2%
Seven or more people	59 ±57 · low precision	0.6% ±0.6 pp · low precision	1.3%	1.4%

A family household contains related people under the Census definition. A nonfamily household can contain one person or unrelated people sharing a home. Households with children can also appear in the household-type and size tables, so those tables must not be added together. Household estimates exclude people living in group quarters from the household universe.

Nativity and languages spoken at home

Nativity · B05002 · ACS 2020–2024 Total population: 23,996
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	20,774 ±604	86.6% ±1.8 pp	85.3%	85.9%
Foreign born	3,222 ±435	13.4% ±1.8 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 22,248
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	17,092 ±625	76.8% ±2.3 pp	76.0%	77.7%
Spanish	4,851 ±551	21.8% ±2.4 pp	14.0%	13.6%
French, Haitian, or Cajun	69 ±64 · low precision	0.3% ±0.3 pp · low precision	0.3%	0.7%
German or other West Germanic	37 ±42 · low precision	0.2% ±0.2 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	35 ±40 · low precision	0.2% ±0.2 pp · low precision	2.5%	0.7%
Other Indo-European	86 ±61 · low precision	0.4% ±0.3 pp · low precision	2.6%	2.0%
Korean	10 ±23 · low precision	0.0% ±0.1 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	8 ±15 · low precision	0.0% ±0.1 pp · low precision	0.9%	1.1%
Vietnamese	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	9 ±13 · low precision	0.0% ±0.1 pp · low precision	0.7%	0.6%
Other Asian and Pacific Island	20 ±34 · low precision	0.1% ±0.2 pp · low precision	1.0%	1.1%
Arabic	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.6%	0.5%
Other and unspecified	31 ±36 · low precision	0.1% ±0.2 pp · low precision	0.6%	0.8%

Foreign born means not a U.S. citizen at birth; it includes naturalized citizens. Language categories describe speech at home among people age five and older. A language other than English at home does not establish that someone cannot speak English. This city page uses the published C16001 summary categories because the more detailed B16001 table does not provide these city records in this release.

Educational attainment

Highest completed education · B15003 · ACS 2020–2024 Population age 25 and older: 15,836
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	2,835 ±435	17.9% ±2.7 pp	9.5%	10.4%
High school graduate or equivalency	5,754 ±572	36.3% ±3.4 pp	25.1%	26.0%
Some college, no degree	3,978 ±475	25.1% ±2.9 pp	19.2%	19.1%
Associate’s degree	1,206 ±254	7.6% ±1.6 pp	8.3%	8.8%
Bachelor’s degree	1,203 ±208	7.6% ±1.3 pp	22.6%	21.6%
Graduate or professional degree	860 ±198	5.4% ±1.2 pp	15.3%	14.1%

The denominator excludes residents under 25. Each person is counted in the highest attainment category they completed. This table does not measure the quality of local schools or the education level of every current student.

Residence one year earlier

Geographic mobility · B07003 · ACS 2020–2024 Population age 1 and older: 23,585
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	21,997 ±650	93.3% ±1.9 pp	88.9%	87.7%
Moved within same county	658 ±250	2.8% ±1.1 pp	6.4%	6.3%
Moved from a different county in the same state	868 ±352	3.7% ±1.5 pp	2.4%	3.1%
Moved from a different state	20 ±27 · low precision	0.1% ±0.1 pp · low precision	1.6%	2.3%
Moved from abroad	42 ±42 · low precision	0.2% ±0.2 pp · low precision	0.6%	0.6%

These are respondents’ residence patterns one year before their survey response, pooled across the five-year window. They are not a net migration count for 2025. A person can move to a different house within the same city or county; moves within the same county should not automatically be interpreted as new arrivals to the city.

Health insurance, internet access and veterans

8.6% of Kankakee residents (±1.5 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 84.6% of households subscribe to broadband of any type, including cellular data plans. A subscription is not the same as available service: the FCC National Broadband Map shows providers at a specific address.

City, state and U.S. shares · ACS 2020–2024
Measure	Kankakee	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	8.6% ±1.5 pp	6.9%	8.4%	Higher
Households with a broadband subscription Households	84.6% ±3.7 pp	90.8%	91.0%	Lower
Veterans Civilian population age 18 and older	5.2% ±1.3 pp	4.8%	6.2%	Not statistically different

Reading and reusing the estimates

The Census table links above lead to the original detailed tables. Counts, source universes and uncertainty are retained in the source observation download for Kankakee . Compare these figures with the same survey window; do not compare one city’s five-year estimate with another city’s annual estimate as though they measured the same period. For methods, see uncertainty and denominator calculations.

Read Kankakee housing and cost context or return to the city profile.