St. Joseph: Demographics & People
About 783 people live in St. Joseph, in 335 households. Population shrank 0.6% from 788 (2022) to 783 (2024). Median age 39.6 years. Children under 18 are 20% of the population. Population is 91% White (non-Hispanic) and 4% Black. The community is relatively homogeneous (Simpson index 0.08). 60% of households are family-led. County is gaining 1,908 residents per year (2022-2023). County health: 41% adult obesity, 21% smoke.
- 2.3 people per household.
- 40% non-family households (singles, roommates).
Population & Trend
Population shrank 0.6% from 788 (2022) to 783 (2024). Estimated 2026 population: ~778 (extrapolated at -0.3%/yr trend). Census Bureau Vintage estimate: 771.
| Census data vintage | 2024 |
|---|---|
| Population | 44,159 people |
| Annual growth rate · Population change | -0.6% |
| Annual growth rate · Population (2022) | 788 |
| Annual growth rate · Population (2024) | 783 |
| Annual growth rate · Trend category | stable |
| Population | 783 people |
| Population Estimate | 771 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 39.6y is 0.7 years older than the U.S. median (38.9y). Children under 18 make up 20% — below the U.S. share of ~22%.
| Age Summary · Median age | 39.6 years (at Tennessee median) |
|---|---|
| Age Summary · Children Pct | 19.9% |
| Age Summary · Character | family-oriented |
| Population under 18 | 156 |
| Median age | 39.6 years (at Tennessee median) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 783 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.08 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 732 |
|---|---|
| Black residents | 25 |
| Hispanic or Latino residents | 7 |
| Diversity Index · Diversity index (Simpson) | 8.1% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 3 |
| Diversity Index · Largest group share | 95.8% |
| Black population | 3.6% |
| Hispanic or Latino population | 1.8% |
| White (non-Hispanic) population | 90.7% |
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).
| Residents born in this state | 441 |
|---|---|
| Residents born in another state | 328 |
| Share born in this state | 56.3% |
| Share born in another state | 43.7% |
| Native-born U.S. citizens | 41.9% |
| Naturalized citizens | 1.8% |
| Total foreign-born residents | 20 |
| From Africa | 14 |
Households & Family Composition
335 households. Averaging 2.4 people each — smaller than the U.S. average of 2.5. 60% are family households — below the U.S. share of ~65%. Of 187 families, 35% are married couples with children.
| Children under 18 | 160 |
|---|---|
| Total families | 187 |
| Married couples with children | 65 |
| Average household size | 2.37 |
| Women who gave birth (past year) | 17.1% |
| Grandparents living with grandchildren | 13 |
| Grandparents responsible for grandchildren | 3 |
| Family households | 200 households |
| Households that are families | 59.7% |
| Total households | 335 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. 5.2% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 1,908 residents per year on net (IRS migration data).
| Moved within the county (past year) | 5.2% |
|---|---|
| Migration · People moving in (annual) | 39,845 |
| Migration · People moving out (annual) | 37,937 |
| Migration · Net migration (in − out) | 1,908 |
| 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 | 69 |
|---|---|
| Disability rate | 8.8% |
Other
| Congressional District · District | 4 |
|---|---|
| Congressional District · Formatted | TN-04 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 47,099 |
| Cdc Birth Rate · State Fips | 47 |
| Cdc Birth Rate · County Fips | 99 |
| Cdc Birth Rate · County | Lawrence |
| Cdc Birth Rate · Birth Rate | 28.4% |
| Cdc Birth Rate · Lower Ci | 24.40 |
| Cdc Birth Rate · Upper Ci | 32.90 |
| Cdc Mortality · Fips | 47,099 |
| Cdc Mortality · County | Lawrence County |
| Cdc Mortality · Urban Rural | Micropolitan |
| Cdc Mortality · Total Deaths 2020 2023 | 1,694 |
| Cdc Vaccination · Fips | 47,099 |
| Cdc Vaccination · County | Lawrence County |
| Cdc Vaccination · Dose1 Pop Pct | 42.9% |
| Cdc Vaccination · Series Complete Pct | 38.0% |
| Cdc Vaccination · Booster Pct | 46.3% |
| Cdc Vaccination · Population 2019 | 44,142 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 8.00 |
| Family Score · Schools | 14 |
| Family Score · Children Pct | 19.9% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 783, stable, family-oriented, working-class, blue collar |
| Town Summary · Population | 783 people |
| Town Summary · County | Lawrence County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade