Cumberland: Demographics & People
About 533 people live in Cumberland, in 342 households. Population shrank 27.3% from 733 (2022) to 533 (2024). Median age 66.2 years. (24.6y older than Marshall County; 31.0y older than Oklahoma). Children under 18 are 3% of the population. Population is 87% White (non-Hispanic) and 4% Hispanic or Latino. The community is relatively homogeneous (Simpson index 0.20). 69% of households are family-led. County is gaining 94 residents per year (2022-2023). County health: 44% adult obesity, 21% smoke.
- 1.6 people per household (vs Oklahoma avg 2.6).
- 31% non-family households (singles, roommates) (vs Oklahoma 39%).
- 161 dependents per 100 working-age (youth + seniors / 18-64) (vs Oklahoma 67).
Population & Trend
Population shrank 27.3% from 733 (2022) to 533 (2024). Estimated 2026 population: ~397 (extrapolated at -13.6%/yr trend). Census Bureau Vintage estimate: 253.
| Census data vintage | 2024 |
|---|---|
| Population | 15,312 people |
| Annual growth rate · Population change | -27.3% |
| Annual growth rate · Population (2022) | 733 |
| Annual growth rate · Population (2024) | 533 |
| Annual growth rate · Trend category | shrinking |
| Population | 533 people (vs Oklahoma 63,420) |
| Population Estimate | 253 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 66.2y is 27.3 years older than the U.S. median (38.9y). Children under 18 make up 3% — below the U.S. share of ~22%.
| Age Summary · Median age | 66.2 years (vs Oklahoma 35.2y) |
|---|---|
| Age Summary · Children Pct | 3.4% |
| Age Summary · Character | retirement community |
| Age Summary · Total Pop | 533 |
| Age Summary · Under 18 | 18 |
| Age Summary · 18 To 34 | 32.0× |
| Age Summary · 35 To 64 | 172.0× |
| Age Summary · 65 Plus | 311 |
| Population under 18 | 18 |
| Median age | 66.2 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 533 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.20 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 579 |
|---|---|
| Hispanic or Latino residents | 73 |
| Diversity Index · Diversity index (Simpson) | 19.9% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 2 |
| Diversity Index · Largest group share | 88.8% |
| Hispanic or Latino population | 4.1% (vs Oklahoma 12.3%) |
| White (non-Hispanic) population | 86.7% (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 (5)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Residents born in this state | 346 |
|---|---|
| Residents born in another state | 187 |
| Share born in this state | 64.9% |
| Share born in another state | 35.1% |
| Native-born U.S. citizens | 35.1% |
| Total foreign-born residents | 1,183 |
Households & Family Composition
342 households. Averaging 2.1 people each — smaller than the U.S. average of 2.5. 69% are family households — above the U.S. share of ~65%. Of 276 families, 6% are married couples with children.
| Children under 18 | 111 |
|---|---|
| Total families | 276 |
| Married couples with children | 17 |
| Average household size | 2.10 |
| Women who gave birth (past year) | 4.7% |
| Grandparents living with grandchildren | 365 |
| Grandparents responsible for grandchildren | 140 |
| Family households | 236 households (vs Oklahoma 16,590) |
| Households that are families | 69.0% (vs Oklahoma 61.1%) |
| Total households | 342 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. 6.6% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 94 residents per year on net (IRS migration data).
| Moved within the county (past year) | 6.6% |
|---|---|
| Migration · People moving in (annual) | 14,710 |
| Migration · People moving out (annual) | 14,616 |
| Migration · Net migration (in − out) | 94 |
| 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 | 124 |
|---|---|
| Disability rate | 16.6% |
Other
| Congressional District · District | 2 |
|---|---|
| Congressional District · Formatted | OK-02 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 40095 |
| Cdc Birth Rate · State Fips | 40 |
| Cdc Birth Rate · County Fips | 095 |
| Cdc Birth Rate · County | Marshall |
| Cdc Birth Rate · Birth Rate | 43.7% |
| Cdc Birth Rate · Lower Ci | 35.90 |
| Cdc Birth Rate · Upper Ci | 52.60 |
| Cdc Mortality · Fips | 40095 |
| Cdc Mortality · County | Marshall County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 568 |
| Cdc Vaccination · Fips | 40095 |
| Cdc Vaccination · County | Marshall County |
| Cdc Vaccination · Dose1 Pop Pct | 58.3% |
| Cdc Vaccination · Series Complete Pct | 47.1% |
| Cdc Vaccination · Booster Pct | 41.4% |
| Cdc Vaccination · Population 2019 | 16,931 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 4.00 |
| Family Score · Schools | 6 |
| Family Score · Children Pct | 3.4% |
| Family Score · Rating | fair |
| Town Summary · Key Facts | population 533, shrinking, retirement community, middle-class, mixed |
| Town Summary · Population | 533 people (vs Oklahoma 63,420) |
| Town Summary · County | Marshall County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade