Carpentersville, Illinois demographics

Carpentersville, IL demographics: median age 33.8; 24.3% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Carpentersville village, Illinois · Incorporated village · GEOID 1711358. The survey estimates a population of 37,346 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Carpentersville is 33.8 years, with a 90% margin of error of 1.2 years. There are 11,583 households (±489). 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	33.8 ±1.2	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 37,346
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	10,546 ±952	28.2% ±2.5 pp	21.8%	22.0%
18–34	9,169 ±816	24.6% ±2.2 pp	22.7%	22.8%
35–64	14,029 ±950	37.6% ±2.5 pp	38.5%	38.0%
65 and older	3,602 ±574	9.6% ±1.5 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 37,346
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	18,796 ±719	50.3% ±1.9 pp	49.4%	49.5%
Female	18,550 ±712	49.7% ±1.9 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: 37,346
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	13,761 ±1,271	36.8% ±3.4 pp	61.0%	61.0%
Black or African American alone	1,911 ±660	5.1% ±1.8 pp	13.6%	12.2%
American Indian and Alaska Native alone	516 ±287 · low precision	1.4% ±0.8 pp · low precision	0.6%	0.9%
Asian alone	1,522 ±523	4.1% ±1.4 pp	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	56 ±63 · low precision	0.1% ±0.2 pp · low precision	0.0%	0.2%
Some other race alone	13,133 ±1,493	35.2% ±4.0 pp	7.9%	7.1%
Two or more races	6,447 ±1,007	17.3% ±2.7 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 37,346
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	15,910 ±1,090	42.6% ±2.9 pp	81.2%	80.7%
Hispanic or Latino	21,436 ±1,089	57.4% ±2.9 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: 11,583
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	6,160 ±408	53.2% ±2.7 pp	45.3%	46.9%
Other family: male householder, no spouse present	661 ±214	5.7% ±1.8 pp	4.9%	5.1%
Other family: female householder, no spouse present	1,908 ±416	16.5% ±3.5 pp	11.9%	12.2%
Nonfamily: householder living alone	2,174 ±483	18.8% ±4.1 pp	31.2%	28.7%
Nonfamily: householder not living alone	680 ±224	5.9% ±1.9 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 11,583
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	5,008 ±317	43.2% ±2.0 pp	28.6%	29.5%
Households without people under 18	6,575 ±660	56.8% ±5.2 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 11,583
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	2,174 ±483	18.8% ±4.1 pp	31.2%	28.7%
Two-person households	2,779 ±416	24.0% ±3.4 pp	32.3%	33.8%
Three-person households	1,787 ±336	15.4% ±2.8 pp	14.7%	15.3%
Four-person households	2,515 ±424	21.7% ±3.5 pp	12.6%	12.6%
Five-person households	1,274 ±298	11.0% ±2.5 pp	5.8%	5.9%
Six-person households	697 ±253	6.0% ±2.2 pp	2.1%	2.2%
Seven or more people	357 ±144	3.1% ±1.2 pp	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: 37,346
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	26,079 ±995	69.8% ±2.7 pp	85.3%	85.9%
Foreign born	11,267 ±981	30.2% ±2.6 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 35,036
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	15,136 ±1,176	43.2% ±3.3 pp	76.0%	77.7%
Spanish	17,211 ±1,205	49.1% ±3.4 pp	14.0%	13.6%
French, Haitian, or Cajun	116 ±130 · low precision	0.3% ±0.4 pp · low precision	0.3%	0.7%
German or other West Germanic	18 ±24 · low precision	0.1% ±0.1 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	1,048 ±538 · low precision	3.0% ±1.5 pp · low precision	2.5%	0.7%
Other Indo-European	673 ±476 · low precision	1.9% ±1.4 pp · low precision	2.6%	2.0%
Korean	11 ±22 · low precision	0.0% ±0.1 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	212 ±170 · low precision	0.6% ±0.5 pp · low precision	0.9%	1.1%
Vietnamese	30 ±43 · low precision	0.1% ±0.1 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	179 ±122 · low precision	0.5% ±0.3 pp · low precision	0.7%	0.6%
Other Asian and Pacific Island	242 ±169 · low precision	0.7% ±0.5 pp · low precision	1.0%	1.1%
Arabic	21 ±34 · low precision	0.1% ±0.1 pp · low precision	0.6%	0.5%
Other and unspecified	139 ±136 · low precision	0.4% ±0.4 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: 22,923
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	5,274 ±758	23.0% ±3.2 pp	9.5%	10.4%
High school graduate or equivalency	6,588 ±732	28.7% ±3.0 pp	25.1%	26.0%
Some college, no degree	4,091 ±651	17.8% ±2.8 pp	19.2%	19.1%
Associate’s degree	1,405 ±290	6.1% ±1.2 pp	8.3%	8.8%
Bachelor’s degree	3,848 ±559	16.8% ±2.4 pp	22.6%	21.6%
Graduate or professional degree	1,717 ±448	7.5% ±1.9 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: 36,922
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	34,284 ±760	92.9% ±2.0 pp	88.9%	87.7%
Moved within same county	697 ±389 · low precision	1.9% ±1.1 pp · low precision	6.4%	6.3%
Moved from a different county in the same state	1,578 ±599	4.3% ±1.6 pp	2.4%	3.1%
Moved from a different state	190 ±156 · low precision	0.5% ±0.4 pp · low precision	1.6%	2.3%
Moved from abroad	173 ±146 · low precision	0.5% ±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

10.6% of Carpentersville residents (±1.7 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 91.7% 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	Carpentersville	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	10.6% ±1.7 pp	6.9%	8.4%	Higher
Households with a broadband subscription Households	91.7% ±5.4 pp	90.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	4.0% ±1.0 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 Carpentersville . 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 Carpentersville housing and cost context or return to the city profile.