Mundelein, Illinois demographics

Mundelein, IL demographics: median age 38.1; 46.0% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Mundelein village, Illinois · Incorporated village · GEOID 1751349. The survey estimates a population of 31,915 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Mundelein is 38.1 years, with a 90% margin of error of 1.2 years. There are 11,632 households (±425). 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	38.1 ±1.2	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 31,915
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	7,515 ±802	23.5% ±2.5 pp	21.8%	22.0%
18–34	7,060 ±700	22.1% ±2.2 pp	22.7%	22.8%
35–64	12,629 ±893	39.6% ±2.8 pp	38.5%	38.0%
65 and older	4,711 ±496	14.8% ±1.6 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 31,915
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	16,162 ±569	50.6% ±1.8 pp	49.4%	49.5%
Female	15,753 ±570	49.4% ±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: 31,915
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	18,064 ±1,167	56.6% ±3.7 pp	61.0%	61.0%
Black or African American alone	984 ±505 · low precision	3.1% ±1.6 pp · low precision	13.6%	12.2%
American Indian and Alaska Native alone	650 ±501 · low precision	2.0% ±1.6 pp · low precision	0.6%	0.9%
Asian alone	3,228 ±653	10.1% ±2.0 pp	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	54 ±50 · low precision	0.2% ±0.2 pp · low precision	0.0%	0.2%
Some other race alone	3,480 ±827	10.9% ±2.6 pp	7.9%	7.1%
Two or more races	5,455 ±1,403	17.1% ±4.4 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 31,915
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	20,878 ±1,171	65.4% ±3.7 pp	81.2%	80.7%
Hispanic or Latino	11,037 ±1,171	34.6% ±3.7 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: 11,632
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	6,416 ±404	55.2% ±2.8 pp	45.3%	46.9%
Other family: male householder, no spouse present	559 ±150	4.8% ±1.3 pp	4.9%	5.1%
Other family: female householder, no spouse present	1,070 ±254	9.2% ±2.2 pp	11.9%	12.2%
Nonfamily: householder living alone	2,859 ±438	24.6% ±3.7 pp	31.2%	28.7%
Nonfamily: householder not living alone	728 ±291	6.3% ±2.5 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 11,632
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	3,726 ±295	32.0% ±2.2 pp	28.6%	29.5%
Households without people under 18	7,906 ±571	68.0% ±4.2 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 11,632
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	2,859 ±438	24.6% ±3.7 pp	31.2%	28.7%
Two-person households	3,578 ±433	30.8% ±3.6 pp	32.3%	33.8%
Three-person households	1,883 ±369	16.2% ±3.1 pp	14.7%	15.3%
Four-person households	1,925 ±266	16.5% ±2.2 pp	12.6%	12.6%
Five-person households	916 ±259	7.9% ±2.2 pp	5.8%	5.9%
Six-person households	306 ±124	2.6% ±1.1 pp	2.1%	2.2%
Seven or more people	165 ±94 · low precision	1.4% ±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: 31,915
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	23,430 ±766	73.4% ±2.4 pp	85.3%	85.9%
Foreign born	8,485 ±765	26.6% ±2.4 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 30,013
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	16,479 ±1,134	54.9% ±3.7 pp	76.0%	77.7%
Spanish	8,543 ±1,194	28.5% ±4.0 pp	14.0%	13.6%
French, Haitian, or Cajun	306 ±268 · low precision	1.0% ±0.9 pp · low precision	0.3%	0.7%
German or other West Germanic	137 ±117 · low precision	0.5% ±0.4 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	1,774 ±487	5.9% ±1.6 pp	2.5%	0.7%
Other Indo-European	1,052 ±333	3.5% ±1.1 pp	2.6%	2.0%
Korean	164 ±121 · low precision	0.5% ±0.4 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	353 ±163	1.2% ±0.5 pp	0.9%	1.1%
Vietnamese	61 ±64 · low precision	0.2% ±0.2 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	228 ±149 · low precision	0.8% ±0.5 pp · low precision	0.7%	0.6%
Other Asian and Pacific Island	797 ±288	2.7% ±1.0 pp	1.0%	1.1%
Arabic	101 ±109 · low precision	0.3% ±0.4 pp · low precision	0.6%	0.5%
Other and unspecified	18 ±21 · low precision	0.1% ±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: 21,502
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	1,627 ±340	7.6% ±1.6 pp	9.5%	10.4%
High school graduate or equivalency	4,749 ±598	22.1% ±2.7 pp	25.1%	26.0%
Some college, no degree	3,743 ±583	17.4% ±2.7 pp	19.2%	19.1%
Associate’s degree	1,486 ±301	6.9% ±1.4 pp	8.3%	8.8%
Bachelor’s degree	6,130 ±548	28.5% ±2.4 pp	22.6%	21.6%
Graduate or professional degree	3,767 ±507	17.5% ±2.3 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: 31,554
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	28,247 ±672	89.5% ±2.1 pp	88.9%	87.7%
Moved within same county	1,416 ±428	4.5% ±1.4 pp	6.4%	6.3%
Moved from a different county in the same state	1,196 ±442	3.8% ±1.4 pp	2.4%	3.1%
Moved from a different state	471 ±244 · low precision	1.5% ±0.8 pp · low precision	1.6%	2.3%
Moved from abroad	224 ±150 · low precision	0.7% ±0.5 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

9.4% of Mundelein residents (±1.8 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 95.2% 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	Mundelein	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	9.4% ±1.8 pp	6.9%	8.4%	Higher
Households with a broadband subscription Households	95.2% ±1.3 pp	90.8%	91.0%	Higher
Veterans Civilian population age 18 and older	3.0% ±0.7 pp	4.8%	6.2%	Lower

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 Mundelein . 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 Mundelein housing and cost context or return to the city profile.