North Chicago, Illinois demographics

North Chicago, IL demographics: median age 23.2; 20.8% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · North Chicago city, Illinois · Incorporated city · GEOID 1753559. The survey estimates a population of 30,643 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in North Chicago is 23.2 years, with a 90% margin of error of 0.5 years. There are 7,036 households (±401). 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	23.2 ±0.5	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 30,643
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	5,571 ±654	18.2% ±2.1 pp	21.8%	22.0%
18–34	17,052 ±1,193	55.6% ±3.9 pp	22.7%	22.8%
35–64	5,919 ±549	19.3% ±1.8 pp	38.5%	38.0%
65 and older	2,101 ±292	6.9% ±1.0 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 30,643
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	18,577 ±785	60.6% ±2.5 pp	49.4%	49.5%
Female	12,066 ±790	39.4% ±2.6 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: 30,643
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	10,492 ±783	34.2% ±2.5 pp	61.0%	61.0%
Black or African American alone	7,656 ±837	25.0% ±2.7 pp	13.6%	12.2%
American Indian and Alaska Native alone	815 ±348	2.7% ±1.1 pp	0.6%	0.9%
Asian alone	1,856 ±391	6.1% ±1.3 pp	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	83 ±81 · low precision	0.3% ±0.3 pp · low precision	0.0%	0.2%
Some other race alone	3,977 ±824	13.0% ±2.7 pp	7.9%	7.1%
Two or more races	5,764 ±867	18.8% ±2.8 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 30,643
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	18,233 ±1,000	59.5% ±3.2 pp	81.2%	80.7%
Hispanic or Latino	12,410 ±945	40.5% ±3.1 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: 7,036
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	2,389 ±308	34.0% ±3.9 pp	45.3%	46.9%
Other family: male householder, no spouse present	554 ±176	7.9% ±2.5 pp	4.9%	5.1%
Other family: female householder, no spouse present	1,234 ±276	17.5% ±3.8 pp	11.9%	12.2%
Nonfamily: householder living alone	2,146 ±344	30.5% ±4.6 pp	31.2%	28.7%
Nonfamily: householder not living alone	713 ±265	10.1% ±3.7 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 7,036
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	2,531 ±237	36.0% ±2.7 pp	28.6%	29.5%
Households without people under 18	4,505 ±502	64.0% ±6.1 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 7,036
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	2,146 ±344	30.5% ±4.6 pp	31.2%	28.7%
Two-person households	1,759 ±352	25.0% ±4.8 pp	32.3%	33.8%
Three-person households	903 ±223	12.8% ±3.1 pp	14.7%	15.3%
Four-person households	1,085 ±252	15.4% ±3.5 pp	12.6%	12.6%
Five-person households	649 ±188	9.2% ±2.6 pp	5.8%	5.9%
Six-person households	240 ±123 · low precision	3.4% ±1.7 pp · low precision	2.1%	2.2%
Seven or more people	254 ±183 · low precision	3.6% ±2.6 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: 30,643
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	24,746 ±712	80.8% ±2.2 pp	85.3%	85.9%
Foreign born	5,897 ±737	19.2% ±2.4 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 28,907
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	17,550 ±984	60.7% ±3.3 pp	76.0%	77.7%
Spanish	9,138 ±856	31.6% ±2.9 pp	14.0%	13.6%
French, Haitian, or Cajun	359 ±187 · low precision	1.2% ±0.6 pp · low precision	0.3%	0.7%
German or other West Germanic	12 ±18 · low precision	0.0% ±0.1 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	69 ±64 · low precision	0.2% ±0.2 pp · low precision	2.5%	0.7%
Other Indo-European	553 ±283 · low precision	1.9% ±1.0 pp · low precision	2.6%	2.0%
Korean	66 ±69 · low precision	0.2% ±0.2 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	286 ±163 · low precision	1.0% ±0.6 pp · low precision	0.9%	1.1%
Vietnamese	66 ±65 · low precision	0.2% ±0.2 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	325 ±163 · low precision	1.1% ±0.6 pp · low precision	0.7%	0.6%
Other Asian and Pacific Island	335 ±164	1.2% ±0.6 pp	1.0%	1.1%
Arabic	0 ±27 · low precision	0.0% ±0.1 pp · low precision	0.6%	0.5%
Other and unspecified	148 ±102 · low precision	0.5% ±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: 13,357
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	2,509 ±408	18.8% ±2.9 pp	9.5%	10.4%
High school graduate or equivalency	3,820 ±447	28.6% ±3.0 pp	25.1%	26.0%
Some college, no degree	3,228 ±468	24.2% ±3.3 pp	19.2%	19.1%
Associate’s degree	1,019 ±296	7.6% ±2.2 pp	8.3%	8.8%
Bachelor’s degree	1,763 ±260	13.2% ±1.8 pp	22.6%	21.6%
Graduate or professional degree	1,018 ±250	7.6% ±1.8 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: 30,464
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	19,938 ±1,051	65.4% ±3.4 pp	88.9%	87.7%
Moved within same county	1,514 ±567	5.0% ±1.9 pp	6.4%	6.3%
Moved from a different county in the same state	411 ±174	1.3% ±0.6 pp	2.4%	3.1%
Moved from a different state	7,706 ±892	25.3% ±2.9 pp	1.6%	2.3%
Moved from abroad	895 ±611 · low precision	2.9% ±2.0 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

13.2% of North Chicago residents (±2.5 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 86.7% 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	North Chicago	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	13.2% ±2.5 pp	6.9%	8.4%	Higher
Households with a broadband subscription Households	86.7% ±1.1 pp	90.8%	91.0%	Lower
Veterans Civilian population age 18 and older	17.2% ±2.6 pp	4.8%	6.2%	Higher

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 North Chicago . 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 North Chicago housing and cost context or return to the city profile.