St. Francisville: Demographics & People
Census counts 736 people in St. Francisville, in 202 households. Population grew 27.3% from 578 (2022) to 736 (2024). Median age 29.9 years. (10.8y younger than Lawrence County; 9.2y younger than Illinois). Children under 18 are 18% of the population. Population is 77% White (non-Hispanic). The community is relatively homogeneous (Simpson index 0.00). 67% of households are family-led. County is gaining 165 residents per year (2022-2023). County health: 38% adult obesity, 21% smoke.
- 3.6 people per household.
- 33% non-family households (singles, roommates).
Population & Trend
Population grew 27.3% from 578 (2022) to 736 (2024) — about 45.6× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~950 (extrapolated at 13.7%/yr trend). Census Bureau Vintage estimate: 1,293.
| Census data vintage | 2024 |
|---|---|
| Population | 15,280 people |
| Annual growth rate · Population change | 27.3% |
| Annual growth rate · Population (2022) | 578 |
| Annual growth rate · Population (2024) | 736 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | booming |
| Population | 736 people |
| Population Estimate | 1,293 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 29.9y is 9.0 years younger than the U.S. median (38.9y). Children under 18 make up 18% — below the U.S. share of ~22%.
| Age Summary · Median age | 29.9 years (vs Illinois 39.1y) |
|---|---|
| Age Summary · Children Pct | 18.2% |
| Age Summary · Character | young community |
| Population under 18 | 134 |
| Median age | 29.9 years (vs Illinois 39.1y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 736 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.00 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 439 |
|---|---|
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 1 |
| Diversity Index · Largest group share | 100.0% |
| White (non-Hispanic) population | 77.4% |
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 (4)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Residents born in this state | 485 |
|---|---|
| Residents born in another state | 247 |
| Share born in this state | 65.9% |
| Share born in another state | 34.1% |
| Native-born U.S. citizens | 33.6% |
| Naturalized citizens | 0.5% |
| Total foreign-born residents | 3 |
Households & Family Composition
202 households. Averaging 3.2 people each — larger than the U.S. average of 2.5. 67% are family households — near the U.S. share of ~65%. Of 117 families, 15% are married couples with children.
| Children under 18 | 101 |
|---|---|
| Total families | 117 |
| Married couples with children | 18 |
| Average household size | 3.23 |
| Women who gave birth (past year) | 4.4% |
| Grandparents living with grandchildren | 15 |
| Grandparents responsible for grandchildren | 10 |
| Family households | 135 households |
| Households that are families | 66.8% |
| Total households | 202 households |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 16.1% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 165 residents per year on net (IRS migration data).
| Moved within the county (past year) | 16.1% |
|---|---|
| Migration · People moving in (annual) | 11,737 |
| Migration · People moving out (annual) | 11,572 |
| Migration · Net migration (in − out) | 165 |
| Migration · Population growing | Yes |
| 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 | 125 |
|---|---|
| Disability rate | 18.7% |
Other
| Congressional District · District | 12 |
|---|---|
| Congressional District · Formatted | IL-12 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 17,101 |
| Cdc Birth Rate · State Fips | 17 |
| Cdc Birth Rate · County Fips | 101 |
| Cdc Birth Rate · County | Lawrence |
| Cdc Birth Rate · Birth Rate | 34.8% |
| Cdc Birth Rate · Lower Ci | 26.90 |
| Cdc Birth Rate · Upper Ci | 44.30 |
| Cdc Mortality · Fips | 17,101 |
| Cdc Mortality · County | Lawrence County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 413 |
| Cdc Vaccination · Fips | 17,101 |
| Cdc Vaccination · County | Lawrence County |
| Cdc Vaccination · Dose1 Pop Pct | 48.4% |
| Cdc Vaccination · Series Complete Pct | 42.1% |
| Cdc Vaccination · Booster Pct | 43.9% |
| Cdc Vaccination · Population 2019 | 15,678 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 4.00 |
| Family Score · Schools | 6 |
| Family Score · Children Pct | 18.2% |
| Family Score · Rating | fair |
| Town Summary · Key Facts | population 736, booming, young community, middle-class, blue collar |
| Town Summary · Population | 736 people |
| Town Summary · County | Lawrence County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade