Alexis: Demographics & People
814 people call Alexis home, in 328 households. Population grew 13.2% from 719 (2022) to 814 (2024). Median age 43.4 years. (4.9y older than Warren County; 5.7y older than Illinois). Children under 18 are 26% of the population. Population is 96% White (non-Hispanic) and 1% Hispanic or Latino. The community is relatively homogeneous (Simpson index 0.02). 72% of households are family-led. County health: 37% adult obesity, 16% smoke.
- 2.5 people per household (vs Illinois avg 2.5).
- 28% non-family households (singles, roommates) (vs Illinois 38%).
- 84 dependents per 100 working-age (youth + seniors / 18-64) (vs Illinois 64).
Population & Trend
Population grew 13.2% from 719 (2022) to 814 (2024) — about 22.0× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~925 (extrapolated at 6.6%/yr trend). Census Bureau Vintage estimate: 1,087.
| Census data vintage | 2024 |
|---|---|
| Population | 15,699 people |
| Annual growth rate · Population change | 13.2% |
| Annual growth rate · Population (2022) | 719 |
| Annual growth rate · Population (2024) | 814 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | booming |
| Population | 814 people (vs Illinois 39,460) |
| Population Estimate | 1,087 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 43.4y is 4.5 years older than the U.S. median (38.9y). Children under 18 make up 26% — above the U.S. share of ~22%.
| Age Summary · Median age | 43.4 years (vs Illinois 37.7y) |
|---|---|
| Age Summary · Children Pct | 25.8% |
| Age Summary · Character | established |
| Age Summary · Total Pop | 814 |
| Age Summary · Under 18 | 210 |
| Age Summary · 18 To 34 | 124.0× |
| Age Summary · 35 To 64 | 319.0× |
| Age Summary · 65 Plus | 161 |
| Population under 18 | 210 |
| Median age | 43.4 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 814 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.02 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 708 |
|---|---|
| Hispanic or Latino residents | 9 |
| Diversity Index · Diversity index (Simpson) | 2.5% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 2 |
| Diversity Index · Largest group share | 98.7% |
| Asian population | 0.1% (vs Illinois 6.1%) |
| Black population | 0.6% (vs Illinois 9.3%) |
| Hispanic or Latino population | 1.0% (vs Illinois 17.6%) |
| White (non-Hispanic) population | 96.3% (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 (7)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 0.1% are foreign-born — below the U.S. average of 13.9%. 1% have naturalized to U.S. citizenship.
| Residents born in this state | 656 |
|---|---|
| Residents born in another state | 149 |
| Share born in this state | 80.6% |
| Share born in another state | 19.4% |
| Native-born U.S. citizens | 18.3% |
| Foreign-born residents | 0.1% |
| Naturalized citizens | 1.0% |
| Total foreign-born residents | 23 |
| From Europe | 13 |
Households & Family Composition
328 households. Averaging 2.3 people each — smaller than the U.S. average of 2.5. 72% are family households — above the U.S. share of ~65%. Of 204 families, 25% are married couples with children.
| Children under 18 | 165 |
|---|---|
| Total families | 204 |
| Married couples with children | 51 |
| Average household size | 2.33 |
| Women who gave birth (past year) | 9.9% |
| Grandparents living with grandchildren | 6 |
| Family households | 235 households (vs Illinois 9,709) |
| Households that are families | 71.6% (vs Illinois 62.4%) |
| Total households | 328 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. 12.0% moved within the county in the past year — the U.S. baseline is roughly 8–10%.
| Moved within the county (past year) | 12.0% |
|---|---|
| Migration · People moving in (annual) | 15,145 |
| Migration · People moving out (annual) | 15,177 |
| Migration · Net migration (in − out) | -32 |
| 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 | 51 |
|---|---|
| Disability rate | 7.1% |
Other
| Congressional District · District | 17 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 17131 |
| Cdc Birth Rate · State Fips | 17 |
| Cdc Birth Rate · County Fips | 131 |
| Cdc Birth Rate · County | Mercer |
| Cdc Birth Rate · Birth Rate | 15.7% |
| Cdc Birth Rate · Lower Ci | 11.30 |
| Cdc Birth Rate · Upper Ci | 21.20 |
| Cdc Mortality · Fips | 17131 |
| Cdc Mortality · County | Mercer County |
| Cdc Mortality · Urban Rural | Medium metro |
| Cdc Mortality · Total Deaths 2020 2023 | 525 |
| Cdc Vaccination · Fips | 17131 |
| Cdc Vaccination · County | Mercer County |
| Cdc Vaccination · Dose1 Pop Pct | 69.2% |
| Cdc Vaccination · Series Complete Pct | 62.8% |
| Cdc Vaccination · Booster Pct | 53.4% |
| Cdc Vaccination · Population 2019 | 15,437 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 1.80 |
| Family Score · Schools | 1 |
| Family Score · Childcare Centers | 1 |
| Family Score · Children Pct | 25.8% |
| Family Score · Rating | limited |
| Town Summary · Key Facts | population 814, booming, established, middle-class, mixed |
| Town Summary · Population | 814 people (vs Illinois 39,460) |
| Town Summary · County | Mercer County |
Sources: NCES school congressional district assignment · federal dataset cascade