Demographics · IL
Springfield, IL demographics: 113,330 residents, with a median age of 41.0 years, from the U.S. Census Bureau's American Community Survey 2020–2024 (5-year estimates).
113,330people are estimated in Springfield, at a median age of 41.0 years (American Community Survey 2020–2024 period estimate)
Median age 41.0 years — older than the U.S. median of 38.9.
ACS 2020–2024 5-year · ACS 5-Year Estimates 2020-2024 (released 2026-01-29)
In Springfield, the largest race group is White (70.1%); 3.4% of residents are Hispanic or Latino (of any race); 4.9% were born outside the United States.
ACS 2020–2024 · B01001 / B01002
The estimated median age in Springfield is 41.0 years (±0.6), compared with the U.S. estimate of 38.9 ± 0.1 years. These are descriptive comparisons, not significance tests. The population is 48.3% ± 0.6 percentage points male and 51.7% ± 0.6 percentage points female. The largest age band is 5 to 17 at 15.3%.
| Age band | People | Share | ± margin |
|---|---|---|---|
| Under 5 | 6,223 | 5.5% ± 0.4 percentage points | ±447 |
| 5 to 17 | 17,329 | 15.3% ± 0.7 percentage points | ±797 |
| 18 to 24 | 9,832 | 8.7% ± 0.6 percentage points | ±659 |
| 25 to 34 | 14,726 | 13.0% ± 0.5 percentage points | ±568 |
| 35 to 44 | 14,226 | 12.6% ± 0.7 percentage points | ±813 |
| 45 to 54 | 13,394 | 11.8% ± 0.5 percentage points | ±548 |
| 55 to 64 | 15,026 | 13.3% ± 0.7 percentage points | ±823 |
| 65 to 74 | 13,267 | 11.7% ± 0.6 percentage points | ±729 |
| 75 and over | 9,307 | 8.2% ± 0.5 percentage points | ±578 |
Median age by sex: 39.0 (male) · 42.9 (female).
Shares may not sum to 100% due to rounding. Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B01001 sex by age, B01002 median age) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B02001 / B03003
The largest race group in Springfield is White at 70.1% of the population. Separately, 3.4% of residents are Hispanic or Latino of any race.Race and Hispanic origin are two different questions on the census form, so their shares are reported separately and are not additive.
| Race (alone, or two or more) | People | Share | ± margin |
|---|---|---|---|
| White alone | 79,467 | 70.1% ± 0.8 percentage points | ±994 |
| Black or African American alone | 21,903 | 19.3% ± 1.0 percentage points | ±1,156 |
| American Indian & Alaska Native alone | 116 | 0.1% ± 0.0 percentage points | ±55 |
| Asian alone | 3,497 | 3.1% ± 0.4 percentage points | ±406 |
| Native Hawaiian & Pacific Islander alone | 15 | 0.0% ± 0.0 percentage points | ±18 · low precision |
| Some other race alone | 1,639 | 1.4% ± 0.7 percentage points | ±847 · low precision |
| Two or more races | 6,693 | 5.9% ± 0.8 percentage points | ±898 |
| Hispanic or Latino (of any race) | 3,804 | 3.4% ± 0.4 percentage points | ±415 |
Race shares may not sum to 100% due to rounding; race and Hispanic origin are separate questions and are not additive. Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B02001 race, B03003 Hispanic or Latino origin) · place-grain · margins of error at the 90% confidence level · methodology →
ACS 2020–2024 · B11001 / B25010
Springfield has 51,040 households. 51.9% are family households and 41.9% are people living alone. The average household holds 2.15 people.
Total households
51,040
ACS 2020–2024 5-yr · B11001
Avg household size
2.15
ACS 2020–2024 5-yr · B25010 · ±0.03
Family households
51.9% ± 1.3 percentage points
Share of all households · B11001
Living alone
41.9% ± 1.9 percentage points
Share of all households · B11001
| Household type | Households | ± margin |
|---|---|---|
| Total households | 51,040 | ±819 |
| Family households | 26,473 | ±792 |
| Nonfamily households | 24,567 | ±1,032 |
| Householder living alone | 21,372 | ±1,048 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B11001 household type, B25010 average household size) · place-grain · methodology →
ACS 2020–2024 · B05002 / C16001
4.9% of Springfield residents were born outside the United States. 93.9% of residents age 5 and over speak only English at home. The most-spoken non-English language at home is Spanish (2.2%).
| Measure | Value | Source / grain |
|---|---|---|
| Foreign-born share | 4.9% ± 0.5 percentage points | 5,513 people · B05002 |
| Speak only English at home (age 5+) | 93.9% ± 0.7 percentage points | C16001 |
| Top non-English language at home | 2.2% ± 0.3 percentage points | Spanish · 2,328 speakers · C16001 |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B05002 place of birth, C16001 language spoken at home) · place-grain · methodology →
ACS 2020–2024 · B15003
36.3% ± 1.4 percentage points of adults age 25 and over in Springfield hold a bachelor's degree or higher. The U.S. estimate is 35.7%.
| Measure | Value | Source / grain |
|---|---|---|
| Bachelor's degree or higher (age 25+) | 36.3% | B15003 lines 22–25 over line 1 · place-grain |
Source: U.S. Census Bureau, ACS 5-Year 2020–2024 (B15003 educational attainment, population 25+) · place-grain · methodology →
Sources · provenance
The GEOID for Springfield is 1772000. Every figure on this page is a place-grain American Community Survey 5-Year 2020–2024 estimate (ACS 5-Year Estimates 2020-2024 (released 2026-01-29)) shown with its margin of error. Full per-dataset detail: /sources/.