Addison, Illinois demographics

Addison, IL demographics: median age 40.8; 23.7% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Addison village, Illinois · Incorporated village · GEOID 1700243. The survey estimates a population of 35,489 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Addison is 40.8 years, with a 90% margin of error of 1.8 years. There are 12,832 households (±446). 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	40.8 ±1.8	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 35,489
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	6,928 ±699	19.5% ±2.0 pp	21.8%	22.0%
18–34	8,167 ±788	23.0% ±2.2 pp	22.7%	22.8%
35–64	14,414 ±987	40.6% ±2.8 pp	38.5%	38.0%
65 and older	5,980 ±536	16.9% ±1.5 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 35,489
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	17,007 ±547	47.9% ±1.5 pp	49.4%	49.5%
Female	18,482 ±537	52.1% ±1.5 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: 35,489
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	16,514 ±1,182	46.5% ±3.3 pp	61.0%	61.0%
Black or African American alone	1,203 ±387	3.4% ±1.1 pp	13.6%	12.2%
American Indian and Alaska Native alone	533 ±335 · low precision	1.5% ±0.9 pp · low precision	0.6%	0.9%
Asian alone	3,067 ±824	8.6% ±2.3 pp	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±27 · low precision	0.0% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	8,583 ±1,188	24.2% ±3.3 pp	7.9%	7.1%
Two or more races	5,589 ±1,109	15.7% ±3.1 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 35,489
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	19,164 ±1,098	54.0% ±3.1 pp	81.2%	80.7%
Hispanic or Latino	16,325 ±1,097	46.0% ±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: 12,832
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	7,266 ±474	56.6% ±3.1 pp	45.3%	46.9%
Other family: male householder, no spouse present	739 ±188	5.8% ±1.5 pp	4.9%	5.1%
Other family: female householder, no spouse present	1,550 ±287	12.1% ±2.2 pp	11.9%	12.2%
Nonfamily: householder living alone	2,716 ±491	21.2% ±3.8 pp	31.2%	28.7%
Nonfamily: householder not living alone	561 ±220	4.4% ±1.7 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 12,832
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	3,944 ±445	30.7% ±3.3 pp	28.6%	29.5%
Households without people under 18	8,888 ±729	69.3% ±5.1 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 12,832
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	2,716 ±491	21.2% ±3.8 pp	31.2%	28.7%
Two-person households	4,323 ±468	33.7% ±3.5 pp	32.3%	33.8%
Three-person households	2,125 ±358	16.6% ±2.7 pp	14.7%	15.3%
Four-person households	2,273 ±315	17.7% ±2.4 pp	12.6%	12.6%
Five-person households	836 ±263	6.5% ±2.0 pp	5.8%	5.9%
Six-person households	227 ±98	1.8% ±0.8 pp	2.1%	2.2%
Seven or more people	332 ±124	2.6% ±1.0 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: 35,489
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	22,409 ±907	63.1% ±2.6 pp	85.3%	85.9%
Foreign born	13,080 ±912	36.9% ±2.6 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 34,054
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	13,395 ±1,055	39.3% ±3.1 pp	76.0%	77.7%
Spanish	13,148 ±1,184	38.6% ±3.5 pp	14.0%	13.6%
French, Haitian, or Cajun	7 ±11 · low precision	0.0% ±0.0 pp · low precision	0.3%	0.7%
German or other West Germanic	24 ±36 · low precision	0.1% ±0.1 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	2,650 ±634	7.8% ±1.9 pp	2.5%	0.7%
Other Indo-European	3,431 ±756	10.1% ±2.2 pp	2.6%	2.0%
Korean	102 ±126 · low precision	0.3% ±0.4 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	118 ±124 · low precision	0.3% ±0.4 pp · low precision	0.9%	1.1%
Vietnamese	66 ±70 · low precision	0.2% ±0.2 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	211 ±115 · low precision	0.6% ±0.3 pp · low precision	0.7%	0.6%
Other Asian and Pacific Island	823 ±531 · low precision	2.4% ±1.6 pp · low precision	1.0%	1.1%
Arabic	48 ±59 · low precision	0.1% ±0.2 pp · low precision	0.6%	0.5%
Other and unspecified	31 ±44 · 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: 24,937
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	6,006 ±778	24.1% ±3.0 pp	9.5%	10.4%
High school graduate or equivalency	7,647 ±799	30.7% ±3.1 pp	25.1%	26.0%
Some college, no degree	3,534 ±481	14.2% ±1.9 pp	19.2%	19.1%
Associate’s degree	1,851 ±374	7.4% ±1.5 pp	8.3%	8.8%
Bachelor’s degree	4,344 ±611	17.4% ±2.4 pp	22.6%	21.6%
Graduate or professional degree	1,555 ±289	6.2% ±1.1 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: 35,159
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	32,686 ±676	93.0% ±1.9 pp	88.9%	87.7%
Moved within same county	1,405 ±456	4.0% ±1.3 pp	6.4%	6.3%
Moved from a different county in the same state	895 ±423	2.5% ±1.2 pp	2.4%	3.1%
Moved from a different state	76 ±67 · low precision	0.2% ±0.2 pp · low precision	1.6%	2.3%
Moved from abroad	97 ±106 · low precision	0.3% ±0.3 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

10.7% of Addison residents (±2.0 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 90.1% 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	Addison	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	10.7% ±2.0 pp	6.9%	8.4%	Higher
Households with a broadband subscription Households	90.1% ±0.9 pp	90.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	2.4% ±0.6 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 Addison . 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 Addison housing and cost context or return to the city profile.