Newcastle: Demographics & People
About 13,001 people live in Newcastle, in 4,868 households. Population grew 6.2% from 12,238 (2022) to 13,001 (2024). Median age 38.4 years. (3.2y older than Oklahoma). Children under 18 are 25% of the population. Population is 76% White (non-Hispanic) and 8% Hispanic or Latino. The community is relatively homogeneous (Simpson index 0.19). 72% of households are family-led. County is gaining 3,029 residents per year (2022-2023). County health: 38% adult obesity, 16% smoke.
- 2.7 people per household (vs Oklahoma avg 2.6).
- 28% non-family households (singles, roommates) (vs Oklahoma 39%).
- 66 dependents per 100 working-age (youth + seniors / 18-64) (vs Oklahoma 67).
Population & Trend
Population grew 6.2% from 12,238 (2022) to 13,001 (2024) — about 10.4× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~13,823 (extrapolated at 3.1%/yr trend). Census Bureau Vintage estimate: 14,969.
| Census data vintage | 2024 |
|---|---|
| Population | 41,662 people |
| Annual growth rate · Population change | 6.2% |
| Annual growth rate · Population (2022) | 12,238 |
| Annual growth rate · Population (2024) | 13,001 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | booming |
| Population | 13,001 people (vs Oklahoma 63,420) |
| Population Estimate | 14,969 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 38.4y is 0.5 years younger than the U.S. median (38.9y). Children under 18 make up 25% — above the U.S. share of ~22%.
| Age Summary · Median age | 38.4 years (vs Oklahoma 35.2y) |
|---|---|
| Age Summary · Children Pct | 24.6% |
| Age Summary · Character | family-oriented |
| Age Summary · Total Pop | 13,001 |
| Age Summary · Under 18 | 3,197 |
| Age Summary · 18 To 34 | 2,638.0× |
| Age Summary · 35 To 64 | 5,198.0× |
| Age Summary · 65 Plus | 1,968 |
| Population under 18 | 3,197 |
| Median age | 38.4 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 13,001 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.19 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 9,817 |
|---|---|
| Black residents | 228 |
| Asian residents | 64 |
| Hispanic or Latino residents | 830 |
| Diversity Index · Diversity index (Simpson) | 18.8% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 89.7% |
| Asian population | 0.5% (vs Oklahoma 3.2%) |
| Black population | 2.5% (vs Oklahoma 5.5%) |
| Hispanic or Latino population | 8.4% (vs Oklahoma 12.3%) |
| White (non-Hispanic) population | 76.0% (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 (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%. 3% have naturalized to U.S. citizenship.
| Residents born in this state | 9,246 |
|---|---|
| Residents born in another state | 3,188 |
| Share born in this state | 71.1% |
| Share born in another state | 28.9% |
| Native-born U.S. citizens | 24.5% |
| Foreign-born residents | 1.0% |
| Naturalized citizens | 3.4% |
| Total foreign-born residents | 293 |
| From Europe | 36 |
| From Africa | 19 |
Households & Family Composition
4,868 households. Averaging 2.6 people each — larger than the U.S. average of 2.5. 72% are family households — above the U.S. share of ~65%. Of 3,435 families, 37% are married couples with children.
| Children under 18 | 3,034 |
|---|---|
| Total families | 3,435 |
| Married couples with children | 1,269 |
| Single-parent households | 169 |
| Average household size | 2.62 |
| Women who gave birth (past year) | 9.2% |
| Grandparents living with grandchildren | 122 |
| Grandparents responsible for grandchildren | 39 |
| Family households | 3,519 households (vs Oklahoma 16,590) |
| Households that are families | 72.3% (vs Oklahoma 61.1%) |
| Total households | 4,868 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. 9.5% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 3,029 residents per year on net (IRS migration data).
| Moved within the county (past year) | 9.5% |
|---|---|
| Migration · People moving in (annual) | 47,565 |
| Migration · People moving out (annual) | 44,536 |
| Migration · Net migration (in − out) | 3,029 |
| 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 | 540 |
|---|---|
| Disability rate | 4.7% |
Other
| Congressional District · District | 4 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 40087 |
| Cdc Birth Rate · State Fips | 40 |
| Cdc Birth Rate · County Fips | 087 |
| Cdc Birth Rate · County | Mcclain |
| Cdc Birth Rate · Birth Rate | 20.5% |
| Cdc Birth Rate · Lower Ci | 17.10 |
| Cdc Birth Rate · Upper Ci | 24.30 |
| Cdc Mortality · Fips | 40087 |
| Cdc Mortality · County | McClain County |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 1,007 |
| Cdc Vaccination · Fips | 40087 |
| Cdc Vaccination · County | McClain County |
| Cdc Vaccination · Dose1 Pop Pct | 60.7% |
| Cdc Vaccination · Series Complete Pct | 50.5% |
| Cdc Vaccination · Booster Pct | 42.2% |
| Cdc Vaccination · Population 2019 | 40,474 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 4.40 |
| Family Score · Schools | 4 |
| Family Score · Childcare Centers | 3 |
| Family Score · Youth Sports Orgs | 1 |
| Family Score · Children Pct | 24.6% |
| Family Score · Rating | fair |
| Town Summary · Key Facts | population 13,001, booming, family-oriented, upper-middle, white collar |
| Town Summary · Population | 13,001 people (vs Oklahoma 63,420) |
| Town Summary · County | McClain County |
Sources: NCES school congressional district assignment · federal dataset cascade