Springfield, Illinois demographics

Springfield, IL demographics: median age 41.0; 36.3% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Springfield city, Illinois · Incorporated city · GEOID 1772000. The survey estimates a population of 113,330 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Springfield is 41.0 years, with a 90% margin of error of 0.6 years. There are 51,040 households (±819). 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	41.0 ±0.6	39.0 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 113,330
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Under 18	23,552 ±914	20.8% ±0.8 pp	21.8%	22.0%
18–34	24,558 ±870	21.7% ±0.8 pp	22.7%	22.8%
35–64	42,646 ±1,280	37.6% ±1.1 pp	38.5%	38.0%
65 and older	22,574 ±931	19.9% ±0.8 pp	17.0%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 113,330
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Male	54,778 ±663	48.3% ±0.6 pp	49.4%	49.5%
Female	58,552 ±682	51.7% ±0.6 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: 113,330
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
White alone	79,467 ±994	70.1% ±0.8 pp	61.0%	61.0%
Black or African American alone	21,903 ±1,156	19.3% ±1.0 pp	13.6%	12.2%
American Indian and Alaska Native alone	116 ±55	0.1% ±0.0 pp	0.6%	0.9%
Asian alone	3,497 ±406	3.1% ±0.4 pp	6.0%	6.0%
Native Hawaiian and Other Pacific Islander alone	15 ±18 · low precision	0.0% ±0.0 pp · low precision	0.0%	0.2%
Some other race alone	1,639 ±847 · low precision	1.4% ±0.7 pp · low precision	7.9%	7.1%
Two or more races	6,693 ±898	5.9% ±0.8 pp	10.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 113,330
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Not Hispanic or Latino	109,526 ±614	96.6% ±0.4 pp	81.2%	80.7%
Hispanic or Latino	3,804 ±415	3.4% ±0.4 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: 51,040
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Married-couple family	17,616 ±750	34.5% ±1.4 pp	45.3%	46.9%
Other family: male householder, no spouse present	2,361 ±477	4.6% ±0.9 pp	4.9%	5.1%
Other family: female householder, no spouse present	6,496 ±595	12.7% ±1.1 pp	11.9%	12.2%
Nonfamily: householder living alone	21,372 ±1,048	41.9% ±1.9 pp	31.2%	28.7%
Nonfamily: householder not living alone	3,195 ±408	6.3% ±0.8 pp	6.7%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 51,040
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Households with people under 18	11,119 ±643	21.8% ±1.2 pp	28.6%	29.5%
Households without people under 18	39,921 ±1,048	78.2% ±1.6 pp	71.4%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 51,040
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
One-person nonfamily households	21,372 ±1,048	41.9% ±1.9 pp	31.2%	28.7%
Two-person households	16,625 ±791	32.6% ±1.5 pp	32.3%	33.8%
Three-person households	6,217 ±638	12.2% ±1.2 pp	14.7%	15.3%
Four-person households	3,764 ±416	7.4% ±0.8 pp	12.6%	12.6%
Five-person households	2,050 ±377	4.0% ±0.7 pp	5.8%	5.9%
Six-person households	621 ±165	1.2% ±0.3 pp	2.1%	2.2%
Seven or more people	391 ±155	0.8% ±0.3 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: 113,330
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Native	107,817 ±733	95.1% ±0.5 pp	85.3%	85.9%
Foreign born	5,513 ±623	4.9% ±0.5 pp	14.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 107,107
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
English only	100,613 ±954	93.9% ±0.7 pp	76.0%	77.7%
Spanish	2,328 ±354	2.2% ±0.3 pp	14.0%	13.6%
French, Haitian, or Cajun	475 ±244 · low precision	0.4% ±0.2 pp · low precision	0.3%	0.7%
German or other West Germanic	221 ±94	0.2% ±0.1 pp	0.3%	0.5%
Russian, Polish, or other Slavic	115 ±72 · low precision	0.1% ±0.1 pp · low precision	2.5%	0.7%
Other Indo-European	764 ±292	0.7% ±0.3 pp	2.6%	2.0%
Korean	107 ±82 · low precision	0.1% ±0.1 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	460 ±183	0.4% ±0.2 pp	0.9%	1.1%
Vietnamese	48 ±43 · low precision	0.0% ±0.0 pp · low precision	0.2%	0.5%
Tagalog, including Filipino	519 ±212	0.5% ±0.2 pp	0.7%	0.6%
Other Asian and Pacific Island	683 ±219	0.6% ±0.2 pp	1.0%	1.1%
Arabic	402 ±267 · low precision	0.4% ±0.2 pp · low precision	0.6%	0.5%
Other and unspecified	372 ±187 · low precision	0.3% ±0.2 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: 79,946
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Less than high school graduate	5,328 ±556	6.7% ±0.7 pp	9.5%	10.4%
High school graduate or equivalency	22,265 ±1,154	27.9% ±1.4 pp	25.1%	26.0%
Some college, no degree	16,209 ±1,031	20.3% ±1.3 pp	19.2%	19.1%
Associate’s degree	7,104 ±682	8.9% ±0.8 pp	8.3%	8.8%
Bachelor’s degree	16,591 ±880	20.8% ±1.1 pp	22.6%	21.6%
Graduate or professional degree	12,449 ±805	15.6% ±1.0 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: 111,941
Category	Count ± MOE	Share ± MOE (pp)	Illinois	U.S.
Same house	97,711 ±1,167	87.3% ±1.0 pp	88.9%	87.7%
Moved within same county	10,354 ±1,103	9.2% ±1.0 pp	6.4%	6.3%
Moved from a different county in the same state	1,991 ±391	1.8% ±0.3 pp	2.4%	3.1%
Moved from a different state	1,512 ±328	1.4% ±0.3 pp	1.6%	2.3%
Moved from abroad	373 ±194 · low precision	0.3% ±0.2 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

4.1% of Springfield residents (±0.5 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	Springfield	Illinois	U.S.	Compared with Illinois
People without health insurance Civilian noninstitutionalized population	4.1% ±0.5 pp	6.9%	8.4%	Lower
Households with a broadband subscription Households	90.1% ±1.0 pp	90.8%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	6.5% ±0.6 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 Springfield . 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 Springfield housing and cost context or return to the city profile.