Seminole: Demographics & People
About 7,194 people live in Seminole, in 2,646 households. Population grew 0.5% from 7,161 (2022) to 7,194 (2024). Median age 33.1 years. (6.1y younger than Seminole County; 2.1y younger than Oklahoma). Children under 18 are 25% of the population. Population is 59% White (non-Hispanic) and 6% Hispanic or Latino. 64% of households are family-led. County is gaining 108 residents per year (2022-2023). County health: 43% adult obesity, 23% smoke.
- 2.7 people per household (vs Oklahoma avg 2.6).
- 36% non-family households (singles, roommates) (vs Oklahoma 39%).
- 68 dependents per 100 working-age (youth + seniors / 18-64) (vs Oklahoma 67).
Population & Trend
Population grew 0.5% from 7,161 (2022) to 7,194 (2024) — close to the U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~7,227 (extrapolated at 0.2%/yr trend). Census Bureau Vintage estimate: 7,271.
| Census data vintage | 2024 |
|---|---|
| Population | 23,556 people |
| Annual growth rate · Population change | 0.5% |
| Annual growth rate · Population (2022) | 7,161 |
| Annual growth rate · Population (2024) | 7,194 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | stable |
| Population | 7,194 people (vs Oklahoma 63,420) |
| Population Estimate | 7,271 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 33.1y is 5.8 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 | 33.1 years (vs Oklahoma 35.2y) |
|---|---|
| Age Summary · Children Pct | 24.8% |
| Age Summary · Character | young professional |
| Age Summary · Total Pop | 7,194 |
| Age Summary · Under 18 | 1,787 |
| Age Summary · 18 To 34 | 2,014.0× |
| Age Summary · 35 To 64 | 2,257.0× |
| Age Summary · 65 Plus | 1,136 |
| Population under 18 | 1,787 |
| Median age | 33.1 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 7,194 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White residents | 4,309 |
|---|---|
| Black residents | 367 |
| Asian residents | 35 |
| Hispanic or Latino residents | 418 |
| Diversity Index · Simpson Index | 55.3% |
| Diversity Index · Interpretation | moderately diverse |
| Asian population | 0.1% (vs Oklahoma 3.2%) |
| Black population | 4.6% (vs Oklahoma 5.5%) |
| Hispanic or Latino population | 6.0% (vs Oklahoma 12.3%) |
| White (non-Hispanic) population | 59.0% (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). 0.5% are foreign-born — below the U.S. average of 13.9%. 3% have naturalized to U.S. citizenship.
| Residents born in this state | 5,161 |
|---|---|
| Residents born in another state | 1,798 |
| Share born in this state | 71.7% |
| Share born in another state | 28.3% |
| Native-born U.S. citizens | 25.0% |
| Foreign-born residents | 0.5% |
| Naturalized citizens | 2.8% |
| Total foreign-born residents | 230 |
| From Europe | 25 |
| From Africa | 43 |
Households & Family Composition
2,646 households. Averaging 2.6 people each — larger than the U.S. average of 2.5. 64% are family households — near the U.S. share of ~65%. Of 1,710 families, 28% are married couples with children.
| Children under 18 | 1,820 |
|---|---|
| Total families | 1,710 |
| Married couples with children | 477 |
| Single-parent households | 89 |
| Average household size | 2.62 |
| Women who gave birth (past year) | 11.9% |
| Grandparents living with grandchildren | 209 |
| Grandparents responsible for grandchildren | 45 |
| Family households | 1,700 households (vs Oklahoma 16,590) |
| Households that are families | 64.2% (vs Oklahoma 61.1%) |
| Total households | 2,646 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. 14.5% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 108 residents per year on net (IRS migration data).
| Moved within the county (past year) | 14.5% |
|---|---|
| Migration · People moving in (annual) | 19,885 |
| Migration · People moving out (annual) | 19,777 |
| Migration · Net migration (in − out) | 108 |
| 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 | 674 |
|---|---|
| Disability rate | 9.6% |
Group Quarters
Group quarters are non-household living arrangements counted by the Census — college dormitories, nursing homes, military barracks, group homes, correctional facilities, and similar institutional or shared housing. 378 residents live in group quarters (5.3% of population).
| Living in group quarters | 378 |
|---|
Other
| Congressional District · District | 5 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 40133 |
| Cdc Birth Rate · State Fips | 40 |
| Cdc Birth Rate · County Fips | 133 |
| Cdc Birth Rate · County | Seminole |
| Cdc Birth Rate · Birth Rate | 36.3% |
| Cdc Birth Rate · Lower Ci | 30.80 |
| Cdc Birth Rate · Upper Ci | 42.50 |
| Cdc Mortality · Fips | 40133 |
| Cdc Mortality · County | Seminole County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 886 |
| Cdc Vaccination · Fips | 40133 |
| Cdc Vaccination · County | Seminole County |
| Cdc Vaccination · Dose1 Pop Pct | 65.7% |
| Cdc Vaccination · Series Complete Pct | 55.1% |
| Cdc Vaccination · Booster Pct | 42.3% |
| Cdc Vaccination · Population 2019 | 24,258 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 6.30 |
| Family Score · Schools | 10 |
| Family Score · Childcare Centers | 1 |
| Family Score · Children Pct | 24.8% |
| Family Score · Rating | good |
| Town Summary · Key Facts | population 7,194, stable, young professional, working-class, mixed |
| Town Summary · Population | 7,194 people (vs Oklahoma 63,420) |
| Town Summary · County | Seminole County |
Sources: NCES school congressional district assignment · federal dataset cascade