New Baden: Demographics & People
3,463 people call New Baden home, in 1,311 households. Population shrank 0.9% from 3,493 (2022) to 3,463 (2024). Median age 38.5 years. (1.4y younger than St. Clair County; 0.8y older than Illinois). Children under 18 are 28% of the population. Population is 82% White (non-Hispanic) and 13% Hispanic or Latino. The community is somewhat diverse (Simpson index 0.26). 72% of households are family-led. County is losing 451 residents per year (2022-2023). County health: 35% adult obesity, 16% smoke.
- 2.6 people per household (vs Illinois avg 2.5).
- 28% non-family households (singles, roommates) (vs Illinois 38%).
- 64 dependents per 100 working-age (youth + seniors / 18-64) (vs Illinois 64).
Population & Trend
Population shrank 0.9% from 3,493 (2022) to 3,463 (2024). Estimated 2026 population: ~3,433 (extrapolated at -0.4%/yr trend). Census Bureau Vintage estimate: 3,393.
| Census data vintage | 2024 |
|---|---|
| Population | 36,899 people |
| Annual growth rate · Population change | -0.9% |
| Annual growth rate · Population (2022) | 3,493 |
| Annual growth rate · Population (2024) | 3,463 |
| Annual growth rate · Trend category | stable |
| Population | 3,463 people (vs Illinois 39,460) |
| Population Estimate | 3,393 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 38.5y is 0.4 years younger than the U.S. median (38.9y). Children under 18 make up 28% — above the U.S. share of ~22%.
| Age Summary · Median age | 38.5 years (vs Illinois 37.7y) |
|---|---|
| Age Summary · Children Pct | 28.3% |
| Age Summary · Character | family-oriented |
| Age Summary · Total Pop | 3,463 |
| Age Summary · Under 18 | 981 |
| Age Summary · 18 To 34 | 627.0× |
| Age Summary · 35 To 64 | 1,479.0× |
| Age Summary · 65 Plus | 376 |
| Population under 18 | 981 |
| Median age | 38.5 years (vs Illinois 37.7y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 3,463 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.26 (0 = single group, 1 = perfectly even distribution); this is read as somewhat diverse.
| White residents | 2,980 |
|---|---|
| Black residents | 132 |
| Asian residents | 20 |
| Hispanic or Latino residents | 364 |
| Diversity Index · Diversity index (Simpson) | 26.1% |
| Diversity Index · Diversity label | somewhat diverse |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 85.2% |
| Asian population | 0.5% (vs Illinois 6.1%) |
| Black population | 3.6% (vs Illinois 9.3%) |
| Hispanic or Latino population | 12.7% (vs Illinois 17.6%) |
| White (non-Hispanic) population | 82.5% (vs Illinois 54.8%) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Ancestry
Self-reported ancestry from Census ACS — what residents report as their ethnic origin, separate from race. Counts can exceed population because people can list multiple ancestries.
Top (8)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 4.9% are foreign-born — below the U.S. average of 13.9%. 6% have naturalized to U.S. citizenship.
| Residents born in this state | 1,922 |
|---|---|
| Residents born in another state | 1,155 |
| Share born in this state | 55.5% |
| Share born in another state | 44.5% |
| Native-born U.S. citizens | 33.4% |
| Foreign-born residents | 4.9% |
| Naturalized citizens | 6.3% |
| Total foreign-born residents | 164 |
Households & Family Composition
1,311 households. Averaging 2.5 people each — matches the U.S. average of 2.5. 72% are family households — above the U.S. share of ~65%. Of 964 families, 30% are married couples with children.
| Children under 18 | 995 |
|---|---|
| Total families | 964 |
| Married couples with children | 293 |
| Single-parent households | 71 |
| Average household size | 2.54 |
| Women who gave birth (past year) | 22.1% |
| Grandparents living with grandchildren | 71 |
| Family households | 944 households (vs Illinois 9,709) |
| Households that are families | 72.0% (vs Illinois 62.4%) |
| Total households | 1,311 households (vs Illinois 14,867) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 8.5% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 451 residents per year on net (IRS migration data).
| Moved within the county (past year) | 8.5% |
|---|---|
| Migration · People moving in (annual) | 34,599 |
| Migration · People moving out (annual) | 35,050 |
| Migration · Net migration (in − out) | -451 |
| Migration · Year | 2022-2023 |
Sources: IRS SOI Migration 2021-2022 · Refreshed 2026-04-12
Disability
Census ACS measures self-reported functional limitations — vision, hearing, mobility, cognitive, self-care, or independent-living. The U.S. baseline disability rate is about 12–13%; rates trend higher with median age.
| Residents with a disability | 162 |
|---|---|
| Disability rate | 4.8% |
Group Quarters
Group quarters are non-household living arrangements counted by the Census — college dormitories, nursing homes, military barracks, group homes, correctional facilities, and similar institutional or shared housing. 77 residents live in group quarters (2.2% of population).
| Living in group quarters | 77 |
|---|
Other
| Congressional District · District | 15 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 17027 |
| Cdc Birth Rate · State Fips | 17 |
| Cdc Birth Rate · County Fips | 027 |
| Cdc Birth Rate · County | Clinton |
| Cdc Birth Rate · Birth Rate | 11.3% |
| Cdc Birth Rate · Lower Ci | 8.70 |
| Cdc Birth Rate · Upper Ci | 14.40 |
| Cdc Mortality · Fips | 17027 |
| Cdc Mortality · County | Clinton County |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 1,012 |
| Cdc Vaccination · Fips | 17027 |
| Cdc Vaccination · County | Clinton County |
| Cdc Vaccination · Dose1 Pop Pct | 66.5% |
| Cdc Vaccination · Series Complete Pct | 61.1% |
| Cdc Vaccination · Booster Pct | 52.2% |
| Cdc Vaccination · Population 2019 | 37,562 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 1.80 |
| Family Score · Schools | 1 |
| Family Score · Childcare Centers | 1 |
| Family Score · Children Pct | 28.3% |
| Family Score · Rating | limited |
| Town Summary · Key Facts | population 3,463, stable, family-oriented, upper-middle, mixed |
| Town Summary · Population | 3,463 people (vs Illinois 39,460) |
| Town Summary · County | Clinton County |
Sources: NCES school congressional district assignment · federal dataset cascade