Old Green: Demographics & People
Census counts 301 people in Old Green, in 108 households. Population shrank 29.5% from 427 (2022) to 301 (2024). Median age 31.5 years. (6.4y younger than Adair County; 3.7y younger than Oklahoma). Children under 18 are 40% of the population. Population is 80% White (non-Hispanic). 68% of households are family-led. County is gaining 402 residents per year (2022-2023). County health: 44% adult obesity, 26% smoke.
- 2.8 people per household (vs Oklahoma avg 2.6).
- 32% non-family households (singles, roommates) (vs Oklahoma 39%).
- 85 dependents per 100 working-age (youth + seniors / 18-64) (vs Oklahoma 67).
Population & Trend
Population shrank 29.5% from 427 (2022) to 301 (2024). Estimated 2026 population: ~218 (extrapolated at -14.8%/yr trend). Census Bureau Vintage estimate: 133.
| Census data vintage | 2024 |
|---|---|
| Population | 19,495 people |
| Annual growth rate · Population change | -29.5% |
| Annual growth rate · Population (2022) | 427 |
| Annual growth rate · Population (2024) | 301 |
| Annual growth rate · Trend category | shrinking |
| Population | 301 people (vs Oklahoma 63,420) |
| Population Estimate | 133 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 31.5y is 7.4 years younger than the U.S. median (38.9y). Children under 18 make up 40% — above the U.S. share of ~22%.
| Age Summary · Median age | 31.5 years (vs Oklahoma 35.2y) |
|---|---|
| Age Summary · Children Pct | 39.9% |
| Age Summary · Character | young professional |
| Age Summary · Total Pop | 301 |
| Age Summary · Under 18 | 120 |
| Age Summary · 18 To 34 | 95.0× |
| Age Summary · 35 To 64 | 68.0× |
| Age Summary · 65 Plus | 18 |
| Population under 18 | 120 |
| Median age | 31.5 years (vs Oklahoma 35.2y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 301 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White residents | 294 |
|---|---|
| Diversity Index · Simpson Index | 4.5% |
| Diversity Index · Interpretation | less diverse |
| White (non-Hispanic) population | 79.7% (vs Oklahoma 57.8%) |
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 (3)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Residents born in this state | 39 |
|---|---|
| Residents born in another state | 262 |
| Share born in this state | 13.0% |
| Share born in another state | 87.0% |
| Native-born U.S. citizens | 87.0% |
| Total foreign-born residents | 463 |
Households & Family Composition
108 households. Averaging 3.9 people each — larger than the U.S. average of 2.5. 68% are family households — above the U.S. share of ~65%. Of 95 families, 75% are married couples with children.
| Children under 18 | 169 |
|---|---|
| Total families | 95 |
| Married couples with children | 71 |
| Average household size | 3.92 |
| Women who gave birth (past year) | 19.8% |
| Grandparents living with grandchildren | 715 |
| Grandparents responsible for grandchildren | 219 |
| Family households | 74 households (vs Oklahoma 16,590) |
| Households that are families | 68.5% (vs Oklahoma 61.1%) |
| Total households | 108 households (vs Oklahoma 23,671) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. The surrounding county is gaining 402 residents per year on net (IRS migration data).
| Migration · People moving in (annual) | 17,927 |
|---|---|
| Migration · People moving out (annual) | 17,525 |
| Migration · Net migration (in − out) | 402 |
| 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 | 61 |
|---|---|
| Disability rate | 11.7% |
Other
| Congressional District · District | 2 |
|---|---|
| Congressional District · Formatted | OK-02 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 40001 |
| Cdc Birth Rate · State Fips | 40 |
| Cdc Birth Rate · County Fips | 001 |
| Cdc Birth Rate · County | Adair |
| Cdc Birth Rate · Birth Rate | 48.7% |
| Cdc Birth Rate · Lower Ci | 41.60 |
| Cdc Birth Rate · Upper Ci | 56.50 |
| Cdc Mortality · Fips | 40001 |
| Cdc Mortality · County | Adair County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 653 |
| Cdc Vaccination · Fips | 40001 |
| Cdc Vaccination · County | Adair County |
| Cdc Vaccination · Dose1 Pop Pct | 56.5% |
| Cdc Vaccination · Series Complete Pct | 38.6% |
| Cdc Vaccination · Booster Pct | 34.6% |
| Cdc Vaccination · Population 2019 | 22,194 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 9.00 |
| Family Score · Schools | 16 |
| Family Score · Children Pct | 39.9% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 301, shrinking, young professional, upper-middle, white collar |
| Town Summary · Population | 301 people (vs Oklahoma 63,420) |
| Town Summary · County | Adair County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade