Summersville: Demographics & People
Summersville is home to 409 people, in 185 households. Population shrank 4.2% from 427 (2022) to 409 (2024). Median age 41.2 years. (1.7y younger than Texas County; 4.0y older than Missouri). Children under 18 are 22% of the population. Population is 90% White (non-Hispanic). The community is relatively homogeneous (Simpson index 0.00). 45% of households are family-led. County is gaining 236 residents per year (2022-2023). County health: 41% adult obesity, 25% smoke.
- 2.2 people per household (vs Missouri avg 2.4).
- 55% non-family households (singles, roommates) (vs Missouri 42%).
- 57 dependents per 100 working-age (youth + seniors / 18-64) (vs Missouri 67).
Population & Trend
Population shrank 4.2% from 427 (2022) to 409 (2024). Estimated 2026 population: ~391 (extrapolated at -2.1%/yr trend). Census Bureau Vintage estimate: 369.
| Census data vintage | 2024 |
|---|---|
| Population | 7,031 people |
| Annual growth rate · Population change | -4.2% |
| Annual growth rate · Population (2022) | 427 |
| Annual growth rate · Population (2024) | 409 |
| Annual growth rate · Trend category | declining |
| Population | 409 people (vs Missouri 29,363) |
| Population Estimate | 369 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 41.2y is 2.3 years older than the U.S. median (38.9y). Children under 18 make up 22% — near the U.S. share of ~22%.
| Age Summary · Median age | 41.2 years (vs Missouri 37.2y) |
|---|---|
| Age Summary · Children Pct | 22.5% |
| Age Summary · Character | established |
| Age Summary · Total Pop | 409 |
| Age Summary · Under 18 | 92 |
| Age Summary · 18 To 34 | 90.0× |
| Age Summary · 35 To 64 | 171.0× |
| Age Summary · 65 Plus | 56 |
| Population under 18 | 92 |
| Median age | 41.2 years (vs Missouri 37.2y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 409 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 | 414 |
|---|---|
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 1 |
| Diversity Index · Largest group share | 100.0% |
| White (non-Hispanic) population | 90.2% (vs Missouri 77.7%) |
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 (7)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Residents born in this state | 287 |
|---|---|
| Residents born in another state | 122 |
| Share born in this state | 70.2% |
| Share born in another state | 29.8% |
| Native-born U.S. citizens | 29.8% |
| Total foreign-born residents | 2 |
| From Africa | 2 |
Households & Family Composition
185 households. Averaging 2.2 people each — smaller than the U.S. average of 2.5. 45% are family households — below the U.S. share of ~65%. Of 73 families, 33% are married couples with children.
| Children under 18 | 91 |
|---|---|
| Total families | 73 |
| Married couples with children | 24 |
| Single-parent households | 3 |
| Average household size | 2.16 |
| Women who gave birth (past year) | 19.2% |
| Grandparents living with grandchildren | 71 |
| Grandparents responsible for grandchildren | 8 |
| Family households | 83 households (vs Missouri 7,284) |
| Households that are families | 44.9% (vs Missouri 58.3%) |
| Total households | 185 households (vs Missouri 11,992) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 6.6% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 236 residents per year on net (IRS migration data).
| Moved within the county (past year) | 6.6% |
|---|---|
| Migration · People moving in (annual) | 6,776 |
| Migration · People moving out (annual) | 6,540 |
| Migration · Net migration (in − out) | 236 |
| 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 | 43 |
|---|---|
| Disability rate | 12.8% |
Other
| Congressional District · District | 8 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 29203 |
| Cdc Birth Rate · State Fips | 29 |
| Cdc Birth Rate · County Fips | 203 |
| Cdc Birth Rate · County | Shannon |
| Cdc Birth Rate · Birth Rate | 30.9% |
| Cdc Birth Rate · Lower Ci | 22.30 |
| Cdc Birth Rate · Upper Ci | 41.60 |
| Cdc Mortality · Fips | 29203 |
| Cdc Mortality · County | Shannon County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 271 |
| Cdc Vaccination · Fips | 29203 |
| Cdc Vaccination · County | Shannon County |
| Cdc Vaccination · Dose1 Pop Pct | 34.7% |
| Cdc Vaccination · Series Complete Pct | 31.7% |
| Cdc Vaccination · Booster Pct | 48.6% |
| Cdc Vaccination · Population 2019 | 8,166 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 2.60 |
| Family Score · Schools | 2 |
| Family Score · Childcare Centers | 2 |
| Family Score · Children Pct | 22.5% |
| Family Score · Rating | limited |
| Town Summary · Key Facts | population 409, declining, established, working-class, mixed |
| Town Summary · Population | 409 people (vs Missouri 29,363) |
| Town Summary · County | Shannon County |
Sources: NCES school congressional district assignment · federal dataset cascade