Lisle, Illinois demographics

Lisle, IL demographics: median age 36.5; 61.9% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Lisle village, Illinois · Incorporated village · GEOID 1743939. The survey estimates a population of 23,407 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Lisle is 36.5 years, with a 90% margin of error of 1.8 years. There are 10,050 households (±464). 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	36.5 ±1.8	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 23,407
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	4,851 ±573	20.7% ±2.4 pp	21.8%	22.0%
18–34	6,226 ±618	26.6% ±2.6 pp	22.7%	22.8%
35–64	8,830 ±746	37.7% ±3.2 pp	38.5%	38.0%
65 and older	3,500 ±405	15.0% ±1.7 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 23,407
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	11,876 ±396	50.7% ±1.7 pp	49.4%	49.5%
Female	11,531 ±393	49.3% ±1.7 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: 23,407
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	15,923 ±785	68.0% ±3.4 pp	61.0%	61.0%
Black or African American alone	1,103 ±440	4.7% ±1.9 pp	13.6%	12.2%
American Indian and Alaska Native alone	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.6%	0.9%
Asian alone	4,081 ±736	17.4% ±3.1 pp	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	718 ±284	3.1% ±1.2 pp	7.9%	7.1%
Two or more races	1,582 ±335	6.8% ±1.4 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 23,407
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	21,324 ±439	91.1% ±1.9 pp	81.2%	80.7%
Hispanic or Latino	2,083 ±435	8.9% ±1.9 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: 10,050
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	4,531 ±359	45.1% ±2.9 pp	45.3%	46.9%
Other family: male householder, no spouse present	480 ±176	4.8% ±1.7 pp	4.9%	5.1%
Other family: female householder, no spouse present	806 ±215	8.0% ±2.1 pp	11.9%	12.2%
Nonfamily: householder living alone	3,498 ±491	34.8% ±4.6 pp	31.2%	28.7%
Nonfamily: householder not living alone	735 ±252	7.3% ±2.5 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 10,050
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	2,731 ±271	27.2% ±2.4 pp	28.6%	29.5%
Households without people under 18	7,319 ±648	72.8% ±5.5 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 10,050
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	3,498 ±491	34.8% ±4.6 pp	31.2%	28.7%
Two-person households	3,318 ±454	33.0% ±4.3 pp	32.3%	33.8%
Three-person households	1,518 ±268	15.1% ±2.6 pp	14.7%	15.3%
Four-person households	1,152 ±246	11.5% ±2.4 pp	12.6%	12.6%
Five-person households	462 ±189	4.6% ±1.9 pp	5.8%	5.9%
Six-person households	47 ±46 · low precision	0.5% ±0.5 pp · low precision	2.1%	2.2%
Seven or more people	55 ±56 · low precision	0.5% ±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: 23,407
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	19,782 ±464	84.5% ±2.0 pp	85.3%	85.9%
Foreign born	3,625 ±464	15.5% ±2.0 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 21,863
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	17,101 ±684	78.2% ±2.8 pp	76.0%	77.7%
Spanish	1,045 ±300	4.8% ±1.4 pp	14.0%	13.6%
French, Haitian, or Cajun	36 ±43 · low precision	0.2% ±0.2 pp · low precision	0.3%	0.7%
German or other West Germanic	18 ±28 · low precision	0.1% ±0.1 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	532 ±284 · low precision	2.4% ±1.3 pp · low precision	2.5%	0.7%
Other Indo-European	1,535 ±449	7.0% ±2.0 pp	2.6%	2.0%
Korean	62 ±46 · low precision	0.3% ±0.2 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	532 ±241	2.4% ±1.1 pp	0.9%	1.1%
Vietnamese	0 ±24 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	342 ±293 · low precision	1.6% ±1.3 pp · low precision	0.7%	0.6%
Other Asian and Pacific Island	465 ±289 · low precision	2.1% ±1.3 pp · low precision	1.0%	1.1%
Arabic	84 ±104 · low precision	0.4% ±0.5 pp · low precision	0.6%	0.5%
Other and unspecified	111 ±108 · low precision	0.5% ±0.5 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: 16,322
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	452 ±172	2.8% ±1.0 pp	9.5%	10.4%
High school graduate or equivalency	1,881 ±285	11.5% ±1.7 pp	25.1%	26.0%
Some college, no degree	2,691 ±494	16.5% ±3.0 pp	19.2%	19.1%
Associate’s degree	1,200 ±243	7.4% ±1.5 pp	8.3%	8.8%
Bachelor’s degree	5,910 ±572	36.2% ±3.2 pp	22.6%	21.6%
Graduate or professional degree	4,188 ±471	25.7% ±2.7 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: 23,070
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	19,776 ±769	85.7% ±3.3 pp	88.9%	87.7%
Moved within same county	1,488 ±485	6.4% ±2.1 pp	6.4%	6.3%
Moved from a different county in the same state	1,322 ±508	5.7% ±2.2 pp	2.4%	3.1%
Moved from a different state	353 ±190 · low precision	1.5% ±0.8 pp · low precision	1.6%	2.3%
Moved from abroad	131 ±116 · low precision	0.6% ±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

4.4% of Lisle residents (±1.4 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 93.3% 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	Lisle	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	4.4% ±1.4 pp	6.9%	8.4%	Lower
Households with a broadband subscription Households	93.3% ±6.1 pp	90.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	3.8% ±1.0 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 Lisle . 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 Lisle housing and cost context or return to the city profile.