Sullivan: Demographics & People
Census counts 6,310 people in Sullivan, in 2,722 households. Population shrank 0.7% from 6,355 (2022) to 6,310 (2024). Median age 39.4 years. (2.4y younger than Franklin County; 2.2y older than Missouri). Children under 18 are 24% of the population. Population is 88% White (non-Hispanic) and 2% Black. The community is relatively homogeneous (Simpson index 0.07). 59% of households are family-led. County is gaining 290 residents per year (2022-2023). County health: 39% adult obesity, 26% smoke.
- 2.3 people per household (vs Missouri avg 2.4).
- 41% non-family households (singles, roommates) (vs Missouri 42%).
- 80 dependents per 100 working-age (youth + seniors / 18-64) (vs Missouri 67).
Population & Trend
Population shrank 0.7% from 6,355 (2022) to 6,310 (2024). Estimated 2026 population: ~6,265 (extrapolated at -0.4%/yr trend). Census Bureau Vintage estimate: 6,205.
| Census data vintage | 2024 |
|---|---|
| Population | 23,056 people |
| Annual growth rate · Population change | -0.7% |
| Annual growth rate · Population (2022) | 6,355 |
| Annual growth rate · Population (2024) | 6,310 |
| Annual growth rate · Trend category | stable |
| Population | 6,310 people (vs Missouri 29,363) |
| Population Estimate | 6,205 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 39.4y is 0.5 years older than the U.S. median (38.9y). Children under 18 make up 24% — above the U.S. share of ~22%.
| Age Summary · Median age | 39.4 years (vs Missouri 37.2y) |
|---|---|
| Age Summary · Children Pct | 24.1% |
| Age Summary · Character | family-oriented |
| Age Summary · Total Pop | 6,310 |
| Age Summary · Under 18 | 1,522 |
| Age Summary · 18 To 34 | 1,334.0× |
| Age Summary · 35 To 64 | 2,174.0× |
| Age Summary · 65 Plus | 1,280 |
| Population under 18 | 1,522 |
| Median age | 39.4 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 6,310 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.07 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 5,541 |
|---|---|
| Black residents | 120 |
| Hispanic or Latino residents | 101 |
| Diversity Index · Diversity index (Simpson) | 7.4% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 3 |
| Diversity Index · Largest group share | 96.2% |
| Black population | 1.5% (vs Missouri 6.6%) |
| Hispanic or Latino population | 0.8% (vs Missouri 5.3%) |
| White (non-Hispanic) population | 87.7% (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 (8)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 1.0% are foreign-born — below the U.S. average of 13.9%. 0% have naturalized to U.S. citizenship.
| Residents born in this state | 4,973 |
|---|---|
| Residents born in another state | 1,266 |
| Share born in this state | 78.8% |
| Share born in another state | 21.2% |
| Native-born U.S. citizens | 20.1% |
| Foreign-born residents | 1.0% |
| Naturalized citizens | 0.1% |
| Total foreign-born residents | 8 |
| From Europe | 8 |
Households & Family Composition
2,722 households. Averaging 2.3 people each — smaller than the U.S. average of 2.5. 59% are family households — below the U.S. share of ~65%. Of 1,581 families, 21% are married couples with children.
| Children under 18 | 1,487 |
|---|---|
| Total families | 1,581 |
| Married couples with children | 326 |
| Single-parent households | 198 |
| Average household size | 2.27 |
| Women who gave birth (past year) | 18.7% |
| Grandparents living with grandchildren | 13 |
| Grandparents responsible for grandchildren | 6 |
| Family households | 1,609 households (vs Missouri 7,284) |
| Households that are families | 59.1% (vs Missouri 58.3%) |
| Total households | 2,722 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. 20.3% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 290 residents per year on net (IRS migration data).
| Moved within the county (past year) | 20.3% |
|---|---|
| Migration · People moving in (annual) | 20,948 |
| Migration · People moving out (annual) | 20,658 |
| Migration · Net migration (in − out) | 290 |
| 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 | 486 |
|---|---|
| Disability rate | 7.7% |
Group Quarters
Group quarters are non-household living arrangements counted by the Census — college dormitories, nursing homes, military barracks, group homes, correctional facilities, and similar institutional or shared housing. 123 residents live in group quarters (1.9% of population).
| Living in group quarters | 123 |
|---|
Other
| Congressional District · District | 3 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 29055 |
| Cdc Birth Rate · State Fips | 29 |
| Cdc Birth Rate · County Fips | 055 |
| Cdc Birth Rate · County | Crawford |
| Cdc Birth Rate · Birth Rate | 26.6% |
| Cdc Birth Rate · Lower Ci | 21.50 |
| Cdc Birth Rate · Upper Ci | 32.50 |
| Cdc Mortality · Fips | 29055 |
| Cdc Mortality · County | Crawford County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 1,115 |
| Cdc Vaccination · Fips | 29055 |
| Cdc Vaccination · County | Crawford County |
| Cdc Vaccination · Dose1 Pop Pct | 39.6% |
| Cdc Vaccination · Series Complete Pct | 34.7% |
| Cdc Vaccination · Booster Pct | 48.1% |
| Cdc Vaccination · Population 2019 | 23,920 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 5.20 |
| Family Score · Schools | 6 |
| Family Score · Childcare Centers | 4 |
| Family Score · Children Pct | 24.1% |
| Family Score · Rating | good |
| Town Summary · Key Facts | population 6,310, stable, family-oriented, middle-class, blue collar |
| Town Summary · Population | 6,310 people (vs Missouri 29,363) |
| Town Summary · County | Crawford County |
Sources: NCES school congressional district assignment · federal dataset cascade