Osborn: Demographics & People
About 424 people live in Osborn, in 205 households. Population grew 14.9% from 369 (2022) to 424 (2024). Median age 39.3 years. (2.9y younger than DeKalb County; 2.1y older than Missouri). Children under 18 are 29% of the population. Population is 75% White (non-Hispanic) and 18% Hispanic or Latino. The community is relatively homogeneous (Simpson index 0.05). 42% of households are family-led. County is gaining 372 residents per year (2022-2023). County health: 38% adult obesity, 21% smoke.
- 2.1 people per household (vs Missouri avg 2.4).
- 58% non-family households (singles, roommates) (vs Missouri 42%).
- 144 dependents per 100 working-age (youth + seniors / 18-64) (vs Missouri 67).
Population & Trend
Population grew 14.9% from 369 (2022) to 424 (2024) — about 24.9× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~489 (extrapolated at 7.5%/yr trend). Census Bureau Vintage estimate: 586.
| Census data vintage | 2024 |
|---|---|
| Population | 21,184 people |
| Annual growth rate · Population change | 14.9% |
| Annual growth rate · Population (2022) | 369 |
| Annual growth rate · Population (2024) | 424 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | booming |
| Population | 424 people (vs Missouri 29,363) |
| Population Estimate | 586 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 39.3y is 0.4 years older than the U.S. median (38.9y). Children under 18 make up 29% — above the U.S. share of ~22%.
| Age Summary · Median age | 39.3 years (vs Missouri 37.2y) |
|---|---|
| Age Summary · Children Pct | 29.2% |
| Age Summary · Character | family-oriented |
| Age Summary · Total Pop | 424 |
| Age Summary · Under 18 | 124 |
| Age Summary · 18 To 34 | 74.0× |
| Age Summary · 35 To 64 | 100.0× |
| Age Summary · 65 Plus | 126 |
| Population under 18 | 124 |
| Median age | 39.3 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 424 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.05 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 348 |
|---|---|
| Hispanic or Latino residents | 9 |
| Diversity Index · Diversity index (Simpson) | 4.9% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 2 |
| Diversity Index · Largest group share | 97.5% |
| Black population | 3.1% (vs Missouri 6.6%) |
| Hispanic or Latino population | 17.7% (vs Missouri 5.3%) |
| White (non-Hispanic) population | 74.8% (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). 0.5% are foreign-born — below the U.S. average of 13.9%. 7% have naturalized to U.S. citizenship.
| Residents born in this state | 304 |
|---|---|
| Residents born in another state | 88 |
| Share born in this state | 71.7% |
| Share born in another state | 28.3% |
| Native-born U.S. citizens | 20.8% |
| Foreign-born residents | 0.5% |
| Naturalized citizens | 7.1% |
| Total foreign-born residents | 324 |
Households & Family Composition
205 households. Averaging 1.8 people each — smaller than the U.S. average of 2.5. 42% are family households — below the U.S. share of ~65%. Of 80 families, 31% are married couples with children.
| Children under 18 | 80 |
|---|---|
| Total families | 80 |
| Married couples with children | 25 |
| Single-parent households | 2 |
| Average household size | 1.83 |
| Women who gave birth (past year) | 12.5% |
| Grandparents living with grandchildren | 3 |
| Grandparents responsible for grandchildren | 2 |
| Family households | 86 households (vs Missouri 7,284) |
| Households that are families | 42.0% (vs Missouri 58.3%) |
| Total households | 205 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. 6.7% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 372 residents per year on net (IRS migration data).
| Moved within the county (past year) | 6.7% |
|---|---|
| Migration · People moving in (annual) | 21,522 |
| Migration · People moving out (annual) | 21,150 |
| Migration · Net migration (in − out) | 372 |
| 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 | 55 |
|---|---|
| Disability rate | 16.5% |
Other
| Congressional District · District | 6 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 29049 |
| Cdc Birth Rate · State Fips | 29 |
| Cdc Birth Rate · County Fips | 049 |
| Cdc Birth Rate · County | Clinton |
| Cdc Birth Rate · Birth Rate | 21.3% |
| Cdc Birth Rate · Lower Ci | 16.60 |
| Cdc Birth Rate · Upper Ci | 26.80 |
| Cdc Mortality · Fips | 29049 |
| Cdc Mortality · County | Clinton County |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 1,046 |
| Cdc Vaccination · Fips | 29049 |
| Cdc Vaccination · County | Clinton County |
| Cdc Vaccination · Dose1 Pop Pct | 59.7% |
| Cdc Vaccination · Series Complete Pct | 50.4% |
| Cdc Vaccination · Booster Pct | 48.9% |
| Cdc Vaccination · Population 2019 | 20,387 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 2.00 |
| Family Score · Schools | 2 |
| Family Score · Children Pct | 29.2% |
| Family Score · Rating | limited |
| Town Summary · Key Facts | population 424, booming, family-oriented, middle-class, mixed |
| Town Summary · Population | 424 people (vs Missouri 29,363) |
| Town Summary · County | Clinton County |
Sources: NCES school congressional district assignment · federal dataset cascade