Foster: Demographics & People
254 people call Foster home, in 110 households. Population grew 10.9% from 229 (2022) to 254 (2024). Median age 36.8 years. (1.8y younger than Garvin County; 1.6y older than Oklahoma). Children under 18 are 18% of the population. Population is 75% White (non-Hispanic) and 0% Black. The community is relatively homogeneous (Simpson index 0.00). 68% of households are family-led. County is gaining 325 residents per year (2022-2023). County health: 42% adult obesity, 20% smoke.
- 2.3 people per household (vs Oklahoma avg 2.6).
- 32% non-family households (singles, roommates) (vs Oklahoma 39%).
- 49 dependents per 100 working-age (youth + seniors / 18-64) (vs Oklahoma 67).
Population & Trend
Population grew 10.9% from 229 (2022) to 254 (2024) — about 18.2× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~282 (extrapolated at 5.5%/yr trend). Census Bureau Vintage estimate: 323.
| Census data vintage | 2024 |
|---|---|
| Population | 25,656 people |
| Annual growth rate · Population change | 10.9% |
| Annual growth rate · Population (2022) | 229 |
| Annual growth rate · Population (2024) | 254 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | booming |
| Population | 254 people (vs Oklahoma 63,420) |
| Population Estimate | 323 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 36.8y is 2.1 years younger than the U.S. median (38.9y). Children under 18 make up 18% — below the U.S. share of ~22%.
| Age Summary · Median age | 36.8 years (vs Oklahoma 35.2y) |
|---|---|
| Age Summary · Children Pct | 18.5% |
| Age Summary · Character | family-oriented |
| Age Summary · Total Pop | 254 |
| Age Summary · Under 18 | 47 |
| Age Summary · 18 To 34 | 74.0× |
| Age Summary · 35 To 64 | 97.0× |
| Age Summary · 65 Plus | 36 |
| Population under 18 | 47 |
| Median age | 36.8 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 254 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.00 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 173 |
|---|---|
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 1 |
| Diversity Index · Largest group share | 100.0% |
| Black population | 0.4% (vs Oklahoma 5.5%) |
| White (non-Hispanic) population | 74.8% (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 | 198 |
|---|---|
| Residents born in another state | 56 |
| Share born in this state | 78.0% |
| Share born in another state | 22.0% |
| Native-born U.S. citizens | 22.0% |
| Total foreign-born residents | 1,066 |
Households & Family Composition
110 households. Averaging 2.4 people each — matches the U.S. average of 2.5. 68% are family households — above the U.S. share of ~65%. Of 60 families, 25% are married couples with children.
| Children under 18 | 44 |
|---|---|
| Total families | 60 |
| Married couples with children | 15 |
| Average household size | 2.41 |
| Women who gave birth (past year) | 13.3% |
| Grandparents living with grandchildren | 2 |
| Family households | 75 households (vs Oklahoma 16,590) |
| Households that are families | 68.2% (vs Oklahoma 61.1%) |
| Total households | 110 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. 6.5% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 325 residents per year on net (IRS migration data).
| Moved within the county (past year) | 6.5% |
|---|---|
| Migration · People moving in (annual) | 23,440 |
| Migration · People moving out (annual) | 23,115 |
| Migration · Net migration (in − out) | 325 |
| 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 | 20 |
|---|---|
| Disability rate | 7.9% |
Other
| Congressional District · District | 4 |
|---|---|
| Congressional District · Formatted | OK-04 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 40049 |
| Cdc Birth Rate · State Fips | 40 |
| Cdc Birth Rate · County Fips | 049 |
| Cdc Birth Rate · County | Garvin |
| Cdc Birth Rate · Birth Rate | 37.4% |
| Cdc Birth Rate · Lower Ci | 31.60 |
| Cdc Birth Rate · Upper Ci | 43.80 |
| Cdc Mortality · Fips | 40049 |
| Cdc Mortality · County | Garvin County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 947 |
| Cdc Vaccination · Fips | 40049 |
| Cdc Vaccination · County | Garvin County |
| Cdc Vaccination · Dose1 Pop Pct | 56.7% |
| Cdc Vaccination · Series Complete Pct | 48.3% |
| Cdc Vaccination · Booster Pct | 42.9% |
| Cdc Vaccination · Population 2019 | 27,711 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 10 |
| Family Score · Schools | 20 |
| Family Score · Children Pct | 18.5% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 254, booming, family-oriented, middle-class, mixed |
| Town Summary · Population | 254 people (vs Oklahoma 63,420) |
| Town Summary · County | Garvin County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade