Twin Oaks: Demographics & People
Twin Oaks's population stands at 278 people, in 74 households. Population grew 29.9% from 214 (2022) to 278 (2024). Median age 37.7 years. (9.2y younger than Delaware County; 2.5y older than Oklahoma). Children under 18 are 30% of the population. Population is 47% White (non-Hispanic) and 5% Asian. 84% of households are family-led. County is gaining 1,563 residents per year (2022-2023). County health: 43% adult obesity, 23% smoke.
- 3.8 people per household (vs Oklahoma avg 2.6).
- 16% non-family households (singles, roommates) (vs Oklahoma 39%).
- 44 dependents per 100 working-age (youth + seniors / 18-64) (vs Oklahoma 67).
Population & Trend
Population grew 29.9% from 214 (2022) to 278 (2024) — about 49.9× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~367 (extrapolated at 15.0%/yr trend). Census Bureau Vintage estimate: 511.
| Census data vintage | 2024 |
|---|---|
| Population | 40,397 people |
| Annual growth rate · Population change | 29.9% |
| Annual growth rate · Population (2022) | 214 |
| Annual growth rate · Population (2024) | 278 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | booming |
| Population | 278 people (vs Oklahoma 63,420) |
| Population Estimate | 511 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 37.7y is 1.2 years younger than the U.S. median (38.9y). Children under 18 make up 30% — above the U.S. share of ~22%.
| Age Summary · Median age | 37.7 years (vs Oklahoma 35.2y) |
|---|---|
| Age Summary · Children Pct | 29.5% |
| Age Summary · Character | family-oriented |
| Age Summary · Total Pop | 278 |
| Age Summary · Under 18 | 82 |
| Age Summary · 18 To 34 | 55.0× |
| Age Summary · 35 To 64 | 138.0× |
| Age Summary · 65 Plus | 3 |
| Population under 18 | 82 |
| Median age | 37.7 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 278 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White residents | 126 |
|---|---|
| Asian residents | 9 |
| Diversity Index · Simpson Index | 52.9% |
| Diversity Index · Interpretation | moderately diverse |
| Asian population | 5.0% (vs Oklahoma 3.2%) |
| White (non-Hispanic) population | 46.8% (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 (5)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Residents born in this state | 143 |
|---|---|
| Residents born in another state | 129 |
| Share born in this state | 51.4% |
| Share born in another state | 48.6% |
| Native-born U.S. citizens | 46.4% |
| Naturalized citizens | 2.2% |
| Total foreign-born residents | 29 |
| From Africa | 29 |
Households & Family Composition
74 households. Averaging 3.6 people each — larger than the U.S. average of 2.5. 84% are family households — above the U.S. share of ~65%. Of 45 families, 24% are married couples with children.
| Children under 18 | 49 |
|---|---|
| Total families | 45 |
| Married couples with children | 11 |
| Single-parent households | 8 |
| Average household size | 3.63 |
| Women who gave birth (past year) | 44.7% |
| Grandparents living with grandchildren | 1,360 |
| Grandparents responsible for grandchildren | 517 |
| Family households | 62 households (vs Oklahoma 16,590) |
| Households that are families | 83.8% (vs Oklahoma 61.1%) |
| Total households | 74 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. 8.3% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 1,563 residents per year on net (IRS migration data).
| Moved within the county (past year) | 8.3% |
|---|---|
| Migration · People moving in (annual) | 36,405 |
| Migration · People moving out (annual) | 34,842 |
| Migration · Net migration (in − out) | 1,563 |
| 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 | 46 |
|---|---|
| Disability rate | 14.4% |
Other
| Congressional District · District | 2 |
|---|---|
| Congressional District · Formatted | OK-02 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 40041 |
| Cdc Birth Rate · State Fips | 40 |
| Cdc Birth Rate · County Fips | 041 |
| Cdc Birth Rate · County | Delaware |
| Cdc Birth Rate · Birth Rate | 31.4% |
| Cdc Birth Rate · Lower Ci | 26.90 |
| Cdc Birth Rate · Upper Ci | 36.30 |
| Cdc Mortality · Fips | 40041 |
| Cdc Mortality · County | Delaware County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 1,799 |
| Cdc Vaccination · Fips | 40041 |
| Cdc Vaccination · County | Delaware County |
| Cdc Vaccination · Dose1 Pop Pct | 56.7% |
| Cdc Vaccination · Series Complete Pct | 44.4% |
| Cdc Vaccination · Booster Pct | 41.3% |
| Cdc Vaccination · Population 2019 | 43,009 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 8.00 |
| Family Score · Schools | 14 |
| Family Score · Children Pct | 29.5% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 278, booming, family-oriented, lower-income, service economy |
| Town Summary · Population | 278 people (vs Oklahoma 63,420) |
| Town Summary · County | Delaware County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade