O'Donnell: Demographics & People
Census counts 533 people in O'Donnell, in 248 households. Population grew 1.7% from 524 (2022) to 533 (2024). Median age 46.8 years. (9.5y older than Lynn County; 12.3y older than Texas). Children under 18 are 19% of the population. Population is 56% Hispanic or Latino and 44% White (non-Hispanic). 62% of households are family-led. County is losing 444 residents per year (2022-2023). County health: 43% adult obesity, 19% smoke.
- 2.1 people per household (vs Texas avg 2.7).
- 38% non-family households (singles, roommates) (vs Texas 35%).
- 96 dependents per 100 working-age (youth + seniors / 18-64) (vs Texas 62).
Population & Trend
Population grew 1.7% from 524 (2022) to 533 (2024) — about 2.9× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~542 (extrapolated at 0.9%/yr trend). Census Bureau Vintage estimate: 554.
| Census data vintage | 2024 |
|---|---|
| Population | 12,456 people |
| Annual growth rate · Population change | 1.7% |
| Annual growth rate · Population (2022) | 524 |
| Annual growth rate · Population (2024) | 533 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | growing |
| Population | 533 people (vs Texas 143,570) |
| Population Estimate | 554 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 46.8y is 7.9 years older than the U.S. median (38.9y). Children under 18 make up 19% — below the U.S. share of ~22%.
| Age Summary · Median age | 46.8 years (vs Texas 34.5y) |
|---|---|
| Age Summary · Children Pct | 19.3% |
| Age Summary · Character | established |
| Age Summary · Total Pop | 533 |
| Age Summary · Under 18 | 103 |
| Age Summary · 18 To 34 | 110.0× |
| Age Summary · 35 To 64 | 162.0× |
| Age Summary · 65 Plus | 158 |
| Population under 18 | 103 |
| Median age | 46.8 years (vs Texas 34.5y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 533 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White residents | 347 |
|---|---|
| Hispanic or Latino residents | 272 |
| Diversity Index · Simpson Index | 31.6% |
| Diversity Index · Interpretation | less diverse |
| Hispanic or Latino population | 56.5% (vs Texas 36.6%) |
| White (non-Hispanic) population | 43.5% (vs Texas 36.1%) |
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 | 469 |
|---|---|
| Residents born in another state | 19 |
| Share born in this state | 88.0% |
| Share born in another state | 12.0% |
| Native-born U.S. citizens | 3.6% |
| Naturalized citizens | 8.4% |
| Total foreign-born residents | 58 |
| From Europe | 2 |
Households & Family Composition
248 households. Averaging 2.3 people each — smaller than the U.S. average of 2.5. 62% are family households — below the U.S. share of ~65%. Of 135 families, 41% are married couples with children.
| Children under 18 | 119 |
|---|---|
| Total families | 135 |
| Married couples with children | 55 |
| Average household size | 2.29 |
| Women who gave birth (past year) | 3.5% |
| Grandparents living with grandchildren | 8 |
| Family households | 155 households (vs Texas 35,060) |
| Households that are families | 62.5% (vs Texas 65.3%) |
| Total households | 248 households (vs Texas 51,915) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 4.0% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 444 residents per year on net (IRS migration data).
| Moved within the county (past year) | 4.0% |
|---|---|
| Migration · People moving in (annual) | 9,274 |
| Migration · People moving out (annual) | 9,718 |
| Migration · Net migration (in − out) | -444 |
| 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 | 88 |
|---|---|
| Disability rate | 14.1% |
Other
| Congressional District · District | 19 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 48115 |
| Cdc Birth Rate · State Fips | 48 |
| Cdc Birth Rate · County Fips | 115 |
| Cdc Birth Rate · County | Dawson |
| Cdc Birth Rate · Birth Rate | 60.3% |
| Cdc Birth Rate · Lower Ci | 49.90 |
| Cdc Birth Rate · Upper Ci | 72.20 |
| Cdc Mortality · Fips | 48115 |
| Cdc Mortality · County | Dawson County |
| Cdc Mortality · Urban Rural | Micropolitan |
| Cdc Mortality · Total Deaths 2020 2023 | 397 |
| Cdc Vaccination · Fips | 48115 |
| Cdc Vaccination · County | Dawson County |
| Cdc Vaccination · Dose1 Pop Pct | 39.6% |
| Cdc Vaccination · Series Complete Pct | 34.5% |
| Cdc Vaccination · Booster Pct | 34.3% |
| Cdc Vaccination · Population 2019 | 12,728 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 1.50 |
| Family Score · Schools | 1 |
| Family Score · Children Pct | 19.3% |
| Family Score · Rating | limited |
| Town Summary · Key Facts | population 533, growing, established, middle-class, mixed |
| Town Summary · Population | 533 people (vs Texas 143,570) |
| Town Summary · County | Dawson County |
Sources: NCES school congressional district assignment · federal dataset cascade