Elgin, Illinois demographics

Elgin, IL demographics: median age 36.7; 27.0% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Elgin city, Illinois · Incorporated city · GEOID 1723074. The survey estimates a population of 114,934 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Elgin is 36.7 years, with a 90% margin of error of 1.3 years. There are 39,317 households (±1,048). 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	36.7 ±1.3	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 114,934
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	29,074 ±1,565	25.3% ±1.4 pp	21.8%	22.0%
18–34	26,076 ±1,197	22.7% ±1.0 pp	22.7%	22.8%
35–64	44,250 ±1,700	38.5% ±1.5 pp	38.5%	38.0%
65 and older	15,534 ±1,124	13.5% ±1.0 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 114,934
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	58,576 ±1,190	51.0% ±1.0 pp	49.4%	49.5%
Female	56,358 ±1,153	49.0% ±1.0 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: 114,934
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	46,619 ±2,344	40.6% ±2.0 pp	61.0%	61.0%
Black or African American alone	6,256 ±1,059	5.4% ±0.9 pp	13.6%	12.2%
American Indian and Alaska Native alone	2,614 ±874	2.3% ±0.8 pp	0.6%	0.9%
Asian alone	7,679 ±1,005	6.7% ±0.9 pp	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	226 ±163 · low precision	0.2% ±0.1 pp · low precision	0.0%	0.2%
Some other race alone	24,515 ±1,991	21.3% ±1.7 pp	7.9%	7.1%
Two or more races	27,025 ±2,464	23.5% ±2.1 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 114,934
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	58,961 ±2,421	51.3% ±2.1 pp	81.2%	80.7%
Hispanic or Latino	55,973 ±2,376	48.7% ±2.1 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: 39,317
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	19,887 ±867	50.6% ±1.7 pp	45.3%	46.9%
Other family: male householder, no spouse present	2,917 ±422	7.4% ±1.1 pp	4.9%	5.1%
Other family: female householder, no spouse present	5,471 ±530	13.9% ±1.3 pp	11.9%	12.2%
Nonfamily: householder living alone	8,926 ±836	22.7% ±2.0 pp	31.2%	28.7%
Nonfamily: householder not living alone	2,116 ±350	5.4% ±0.9 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 39,317
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	14,230 ±582	36.2% ±1.1 pp	28.6%	29.5%
Households without people under 18	25,087 ±1,272	63.8% ±2.8 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 39,317
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	8,926 ±836	22.7% ±2.0 pp	31.2%	28.7%
Two-person households	11,669 ±980	29.7% ±2.4 pp	32.3%	33.8%
Three-person households	6,358 ±602	16.2% ±1.5 pp	14.7%	15.3%
Four-person households	6,099 ±572	15.5% ±1.4 pp	12.6%	12.6%
Five-person households	3,868 ±466	9.8% ±1.2 pp	5.8%	5.9%
Six-person households	1,396 ±275	3.6% ±0.7 pp	2.1%	2.2%
Seven or more people	1,001 ±284	2.5% ±0.7 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: 114,934
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	84,639 ±1,571	73.6% ±1.3 pp	85.3%	85.9%
Foreign born	30,295 ±1,465	26.4% ±1.3 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 107,083
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	55,596 ±1,848	51.9% ±1.6 pp	76.0%	77.7%
Spanish	42,607 ±2,023	39.8% ±1.8 pp	14.0%	13.6%
French, Haitian, or Cajun	140 ±149 · low precision	0.1% ±0.1 pp · low precision	0.3%	0.7%
German or other West Germanic	367 ±203 · low precision	0.3% ±0.2 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	1,263 ±460	1.2% ±0.4 pp	2.5%	0.7%
Other Indo-European	3,065 ±714	2.9% ±0.7 pp	2.6%	2.0%
Korean	88 ±131 · low precision	0.1% ±0.1 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	173 ±119 · low precision	0.2% ±0.1 pp · low precision	0.9%	1.1%
Vietnamese	64 ±57 · low precision	0.1% ±0.1 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	1,045 ±337	1.0% ±0.3 pp	0.7%	0.6%
Other Asian and Pacific Island	2,231 ±950	2.1% ±0.9 pp	1.0%	1.1%
Arabic	118 ±120 · low precision	0.1% ±0.1 pp · low precision	0.6%	0.5%
Other and unspecified	326 ±138	0.3% ±0.1 pp	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: 75,313
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	14,035 ±1,159	18.6% ±1.5 pp	9.5%	10.4%
High school graduate or equivalency	19,886 ±1,417	26.4% ±1.8 pp	25.1%	26.0%
Some college, no degree	15,038 ±1,150	20.0% ±1.5 pp	19.2%	19.1%
Associate’s degree	6,030 ±800	8.0% ±1.1 pp	8.3%	8.8%
Bachelor’s degree	13,226 ±1,093	17.6% ±1.4 pp	22.6%	21.6%
Graduate or professional degree	7,098 ±689	9.4% ±0.9 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: 113,447
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	100,760 ±1,660	88.8% ±1.4 pp	88.9%	87.7%
Moved within same county	4,915 ±990	4.3% ±0.9 pp	6.4%	6.3%
Moved from a different county in the same state	6,080 ±1,136	5.4% ±1.0 pp	2.4%	3.1%
Moved from a different state	797 ±284	0.7% ±0.3 pp	1.6%	2.3%
Moved from abroad	895 ±429	0.8% ±0.4 pp	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

10.8% of Elgin residents (±1.1 percentage points) had no health insurance coverage when surveyed, compared with 6.9% in Illinois and 8.4% nationally. 94.0% 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	Elgin	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	10.8% ±1.1 pp	6.9%	8.4%	Higher
Households with a broadband subscription Households	94.0% ±0.3 pp	90.8%	91.0%	Higher
Veterans Civilian population age 18 and older	3.4% ±0.5 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 Elgin . 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 Elgin housing and cost context or return to the city profile.