Bourbonnais, Illinois demographics

Bourbonnais, IL demographics: median age 35.8; 34.1% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Bourbonnais village, Illinois · Incorporated village · GEOID 1707471. The survey estimates a population of 18,078 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Bourbonnais is 35.8 years, with a 90% margin of error of 3.3 years. There are 6,179 households (±329). 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	35.8 ±3.3	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 18,078
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	3,721 ±432	20.6% ±2.4 pp	21.8%	22.0%
18–34	5,201 ±490	28.8% ±2.7 pp	22.7%	22.8%
35–64	6,412 ±588	35.5% ±3.2 pp	38.5%	38.0%
65 and older	2,744 ±358	15.2% ±2.0 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 18,078
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	8,641 ±373	47.8% ±2.0 pp	49.4%	49.5%
Female	9,437 ±377	52.2% ±2.1 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: 18,078
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	13,774 ±656	76.2% ±3.6 pp	61.0%	61.0%
Black or African American alone	1,679 ±592	9.3% ±3.3 pp	13.6%	12.2%
American Indian and Alaska Native alone	5 ±11 · low precision	0.0% ±0.1 pp · low precision	0.6%	0.9%
Asian alone	676 ±149	3.7% ±0.8 pp	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±20 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	369 ±236 · low precision	2.0% ±1.3 pp · low precision	7.9%	7.1%
Two or more races	1,575 ±446	8.7% ±2.5 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 18,078
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	16,715 ±487	92.5% ±2.6 pp	81.2%	80.7%
Hispanic or Latino	1,363 ±471	7.5% ±2.6 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: 6,179
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	3,150 ±246	51.0% ±2.9 pp	45.3%	46.9%
Other family: male householder, no spouse present	248 ±112	4.0% ±1.8 pp	4.9%	5.1%
Other family: female householder, no spouse present	837 ±202	13.5% ±3.2 pp	11.9%	12.2%
Nonfamily: householder living alone	1,638 ±314	26.5% ±4.9 pp	31.2%	28.7%
Nonfamily: householder not living alone	306 ±103	5.0% ±1.6 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 6,179
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	1,924 ±227	31.1% ±3.3 pp	28.6%	29.5%
Households without people under 18	4,255 ±409	68.9% ±5.5 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 6,179
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	1,638 ±314	26.5% ±4.9 pp	31.2%	28.7%
Two-person households	2,099 ±316	34.0% ±4.8 pp	32.3%	33.8%
Three-person households	1,032 ±218	16.7% ±3.4 pp	14.7%	15.3%
Four-person households	849 ±197	13.7% ±3.1 pp	12.6%	12.6%
Five-person households	341 ±144	5.5% ±2.3 pp	5.8%	5.9%
Six-person households	177 ±101 · low precision	2.9% ±1.6 pp · low precision	2.1%	2.2%
Seven or more people	43 ±50 · low precision	0.7% ±0.8 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: 18,078
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	17,256 ±204	95.5% ±1.0 pp	85.3%	85.9%
Foreign born	822 ±197	4.5% ±1.1 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 17,395
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	16,252 ±351	93.4% ±1.6 pp	76.0%	77.7%
Spanish	632 ±210	3.6% ±1.2 pp	14.0%	13.6%
French, Haitian, or Cajun	27 ±49 · low precision	0.2% ±0.3 pp · low precision	0.3%	0.7%
German or other West Germanic	37 ±33 · low precision	0.2% ±0.2 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	0 ±20 · low precision	0.0% ±0.1 pp · low precision	2.5%	0.7%
Other Indo-European	70 ±84 · low precision	0.4% ±0.5 pp · low precision	2.6%	2.0%
Korean	52 ±51 · low precision	0.3% ±0.3 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	42 ±54 · low precision	0.2% ±0.3 pp · low precision	0.9%	1.1%
Vietnamese	71 ±68 · low precision	0.4% ±0.4 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	181 ±110 · low precision	1.0% ±0.6 pp · low precision	0.7%	0.6%
Other Asian and Pacific Island	31 ±31 · low precision	0.2% ±0.2 pp · low precision	1.0%	1.1%
Arabic	0 ±20 · low precision	0.0% ±0.1 pp · low precision	0.6%	0.5%
Other and unspecified	0 ±20 · low precision	0.0% ±0.1 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: 11,100
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	520 ±177	4.7% ±1.6 pp	9.5%	10.4%
High school graduate or equivalency	3,756 ±418	33.8% ±3.6 pp	25.1%	26.0%
Some college, no degree	2,164 ±288	19.5% ±2.5 pp	19.2%	19.1%
Associate’s degree	874 ±248	7.9% ±2.2 pp	8.3%	8.8%
Bachelor’s degree	2,358 ±360	21.2% ±3.2 pp	22.6%	21.6%
Graduate or professional degree	1,428 ±287	12.9% ±2.5 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: 17,887
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	15,700 ±423	87.8% ±2.2 pp	88.9%	87.7%
Moved within same county	786 ±284	4.4% ±1.6 pp	6.4%	6.3%
Moved from a different county in the same state	895 ±291	5.0% ±1.6 pp	2.4%	3.1%
Moved from a different state	368 ±142	2.1% ±0.8 pp	1.6%	2.3%
Moved from abroad	138 ±76 · low precision	0.8% ±0.4 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

4.4% of Bourbonnais residents (±1.3 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 94.4% 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	Bourbonnais	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	4.4% ±1.3 pp	6.9%	8.4%	Lower
Households with a broadband subscription Households	94.4% ±0.9 pp	90.8%	91.0%	Higher
Veterans Civilian population age 18 and older	5.3% ±1.5 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 Bourbonnais . 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 Bourbonnais housing and cost context or return to the city profile.