Marlow: Demographics & People
About 4,451 people live in Marlow, in 1,676 households. Population grew 0.6% from 4,423 (2022) to 4,451 (2024). Median age 34.9 years. (6.1y younger than Stephens County). Children under 18 are 27% of the population. Population is 80% White (non-Hispanic) and 7% Hispanic or Latino. 63% of households are family-led. County is gaining 1,185 residents per year (2022-2023). County health: 42% adult obesity, 18% smoke.
- 2.7 people per household (vs Oklahoma avg 2.6).
- 37% non-family households (singles, roommates) (vs Oklahoma 39%).
- 78 dependents per 100 working-age (youth + seniors / 18-64) (vs Oklahoma 67).
Population & Trend
Population grew 0.6% from 4,423 (2022) to 4,451 (2024) — close to the U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~4,479 (extrapolated at 0.3%/yr trend). Census Bureau Vintage estimate: 4,516.
| Census data vintage | 2024 |
|---|---|
| Population | 42,848 people |
| Annual growth rate · Population change | 0.6% |
| Annual growth rate · Population (2022) | 4,423 |
| Annual growth rate · Population (2024) | 4,451 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | stable |
| Population | 4,451 people (vs Oklahoma 63,420) |
| Population Estimate | 4,516 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 34.9y is 4.0 years younger than the U.S. median (38.9y). Children under 18 make up 27% — above the U.S. share of ~22%.
| Age Summary · Median age | 34.9 years (at Oklahoma median) |
|---|---|
| Age Summary · Children Pct | 27.4% |
| Age Summary · Character | young professional |
| Age Summary · Total Pop | 4,451 |
| Age Summary · Under 18 | 1,221 |
| Age Summary · 18 To 34 | 1,010.0× |
| Age Summary · 35 To 64 | 1,497.0× |
| Age Summary · 65 Plus | 723 |
| Population under 18 | 1,221 |
| Median age | 34.9 years (at Oklahoma median) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Census ACS 5-Year 2023 · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 4,451 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White residents | 3,804 |
|---|---|
| Black residents | 23 |
| Hispanic or Latino residents | 325 |
| Diversity Index · Simpson Index | 26.0% |
| Diversity Index · Interpretation | less diverse |
| Black population | 0.2% (vs Oklahoma 5.5%) |
| Hispanic or Latino population | 7.2% (vs Oklahoma 12.3%) |
| White (non-Hispanic) population | 79.8% (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 (8)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 0.6% are foreign-born — below the U.S. average of 13.9%. 1% have naturalized to U.S. citizenship.
| Residents born in this state | 3,333 |
|---|---|
| Residents born in another state | 1,034 |
| Share born in this state | 74.9% |
| Share born in another state | 25.1% |
| Native-born U.S. citizens | 23.2% |
| Foreign-born residents | 0.6% |
| Naturalized citizens | 1.3% |
| Total foreign-born residents | 63 |
| From Africa | 4 |
Households & Family Composition
1,676 households. Averaging 2.5 people each — matches the U.S. average of 2.5. 63% are family households — near the U.S. share of ~65%. Of 1,030 families, 33% are married couples with children.
| Children under 18 | 1,126 |
|---|---|
| Total families | 1,030 |
| Married couples with children | 342 |
| Single-parent households | 27 |
| Average household size | 2.54 |
| Women who gave birth (past year) | 26.1% |
| Grandparents living with grandchildren | 63 |
| Grandparents responsible for grandchildren | 34 |
| Family households | 1,058 households (vs Oklahoma 16,590) |
| Households that are families | 63.1% (vs Oklahoma 61.1%) |
| Total households | 1,676 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. 10.1% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 1,185 residents per year on net (IRS migration data).
| Moved within the county (past year) | 10.1% |
|---|---|
| Migration · People moving in (annual) | 38,012 |
| Migration · People moving out (annual) | 36,827 |
| Migration · Net migration (in − out) | 1,185 |
| 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 | 303 |
|---|---|
| Disability rate | 7.1% |
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. 118 residents live in group quarters (2.7% of population).
| Living in group quarters | 118 |
|---|
Other
| Congressional District · District | 4 |
|---|---|
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 40137 |
| Cdc Birth Rate · State Fips | 40 |
| Cdc Birth Rate · County Fips | 137 |
| Cdc Birth Rate · County | Stephens |
| Cdc Birth Rate · Birth Rate | 34.9% |
| Cdc Birth Rate · Lower Ci | 30.30 |
| Cdc Birth Rate · Upper Ci | 40.00 |
| Cdc Mortality · Fips | 40137 |
| Cdc Mortality · County | Stephens County |
| Cdc Mortality · Urban Rural | Micropolitan |
| Cdc Mortality · Total Deaths 2020 2023 | 2,053 |
| Cdc Vaccination · Fips | 40137 |
| Cdc Vaccination · County | Stephens County |
| Cdc Vaccination · Dose1 Pop Pct | 59.7% |
| Cdc Vaccination · Series Complete Pct | 49.7% |
| Cdc Vaccination · Booster Pct | 43.9% |
| Cdc Vaccination · Population 2019 | 43,143 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 5.30 |
| Family Score · Schools | 8 |
| Family Score · Childcare Centers | 1 |
| Family Score · Children Pct | 27.4% |
| Family Score · Rating | good |
| Town Summary · Key Facts | population 4,451, stable, young professional, middle-class, mixed |
| Town Summary · Population | 4,451 people (vs Oklahoma 63,420) |
| Town Summary · County | Stephens County |
Sources: NCES school congressional district assignment · federal dataset cascade