St. Louisville: Demographics & People
St. Louisville is home to 278 people, in 112 households. Population shrank 18.0% from 339 (2022) to 278 (2024). Median age 43.3 years. (3.0y older than Licking County; 3.5y older than Ohio). Children under 18 are 21% of the population. Population is 94% White (non-Hispanic) and 1% Hispanic or Latino. The community is relatively homogeneous (Simpson index 0.01). 59% of households are family-led. County is gaining 2,020 residents per year (2022-2023). County health: 36% adult obesity, 20% smoke.
- 2.5 people per household.
- 41% non-family households (singles, roommates).
Population & Trend
Population shrank 18.0% from 339 (2022) to 278 (2024). Estimated 2026 population: ~230 (extrapolated at -9.0%/yr trend). Census Bureau Vintage estimate: 175.
| Census data vintage | 2024 |
|---|---|
| Population | 178,519 people |
| Annual growth rate · Population change | -18.0% |
| Annual growth rate · Population (2022) | 339 |
| Annual growth rate · Population (2024) | 278 |
| Annual growth rate · Trend category | shrinking |
| Population | 278 people |
| Population Estimate | 175 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 43.3y is 4.4 years older than the U.S. median (38.9y). Children under 18 make up 21% — below the U.S. share of ~22%.
| Age Summary · Median age | 43.3 years (vs Ohio 39.8y) |
|---|---|
| Age Summary · Children Pct | 20.9% |
| Age Summary · Character | established |
| Population under 18 | 58 |
| Median age | 43.3 years (vs Ohio 39.8y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 278 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.01 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 322 |
|---|---|
| Hispanic or Latino residents | 2 |
| Diversity Index · Diversity index (Simpson) | 1.2% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 2 |
| Diversity Index · Largest group share | 99.4% |
| Hispanic or Latino population | 0.7% |
| White (non-Hispanic) population | 93.9% |
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). 0.4% are foreign-born — below the U.S. average of 13.9%.
| Residents born in this state | 265 |
|---|---|
| Residents born in another state | 12 |
| Share born in this state | 95.3% |
| Share born in another state | 4.7% |
| Native-born U.S. citizens | 4.3% |
| Foreign-born residents | 0.4% |
| Total foreign-born residents | 6,795 |
Households & Family Composition
112 households. Averaging 2.6 people each — matches the U.S. average of 2.5. 59% are family households — below the U.S. share of ~65%. Of 75 families, 29% are married couples with children.
| Children under 18 | 82 |
|---|---|
| Total families | 75 |
| Married couples with children | 22 |
| Single-parent households | 6 |
| Average household size | 2.59 |
| Women who gave birth (past year) | 12.2% |
| Grandparents living with grandchildren | 2 |
| Family households | 66 households |
| Households that are families | 58.9% |
| Total households | 112 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. 2.9% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 2,020 residents per year on net (IRS migration data).
| Moved within the county (past year) | 2.9% |
|---|---|
| Migration · People moving in (annual) | 174,021 |
| Migration · People moving out (annual) | 172,001 |
| Migration · Net migration (in − out) | 2,020 |
| 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 | 33 |
|---|---|
| Disability rate | 8.6% |
Other
| Congressional District · District | 12 |
|---|---|
| Congressional District · Formatted | OH-12 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 39,089 |
| Cdc Birth Rate · State Fips | 39 |
| Cdc Birth Rate · County Fips | 89 |
| Cdc Birth Rate · County | Licking |
| Cdc Birth Rate · Birth Rate | 15.5% |
| Cdc Birth Rate · Lower Ci | 14.00 |
| Cdc Birth Rate · Upper Ci | 17.20 |
| Cdc Mortality · Fips | 39,089 |
| Cdc Mortality · County | Licking County |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 5,932 |
| Cdc Vaccination · Fips | 39,089 |
| Cdc Vaccination · County | Licking County |
| Cdc Vaccination · Dose1 Pop Pct | 59.4% |
| Cdc Vaccination · Series Complete Pct | 56.6% |
| Cdc Vaccination · Booster Pct | 54.7% |
| Cdc Vaccination · Population 2019 | 176,862 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 10 |
| Family Score · Schools | 20 |
| Family Score · Children Pct | 20.9% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 278, shrinking, established, middle-class, mixed |
| Town Summary · Population | 278 people |
| Town Summary · County | Licking County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade