Silo: Demographics & People
Silo's population stands at 580 people, in 224 households. Population shrank 4.6% from 608 (2022) to 580 (2024). Median age 38.6 years. (1.6y older than Bryan County; 3.4y older than Oklahoma). Children under 18 are 31% of the population. Population is 58% White (non-Hispanic) and 13% Hispanic or Latino. 88% of households are family-led. County is gaining 1,885 residents per year (2022-2023). County health: 41% adult obesity, 20% smoke.
- 2.6 people per household (vs Oklahoma avg 2.6).
- 12% non-family households (singles, roommates) (vs Oklahoma 39%).
- 115 dependents per 100 working-age (youth + seniors / 18-64) (vs Oklahoma 67).
Population & Trend
Population shrank 4.6% from 608 (2022) to 580 (2024). Estimated 2026 population: ~553 (extrapolated at -2.3%/yr trend). Census Bureau Vintage estimate: 519.
| Census data vintage | 2024 |
|---|---|
| Population | 46,067 people |
| Annual growth rate · Population change | -4.6% |
| Annual growth rate · Population (2022) | 608 |
| Annual growth rate · Population (2024) | 580 |
| Annual growth rate · Trend category | declining |
| Population | 580 people (vs Oklahoma 63,420) |
| Population Estimate | 519 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 38.6y is 0.3 years younger than the U.S. median (38.9y). Children under 18 make up 31% — above the U.S. share of ~22%.
| Age Summary · Median age | 38.6 years (vs Oklahoma 35.2y) |
|---|---|
| Age Summary · Children Pct | 31.0% |
| Age Summary · Character | family-oriented |
| Age Summary · Total Pop | 580 |
| Age Summary · Under 18 | 180 |
| Age Summary · 18 To 34 | 62.0× |
| Age Summary · 35 To 64 | 208.0× |
| Age Summary · 65 Plus | 130 |
| Population under 18 | 180 |
| Median age | 38.6 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 580 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White residents | 434 |
|---|---|
| Hispanic or Latino residents | 12 |
| Diversity Index · Simpson Index | 38.6% |
| Diversity Index · Interpretation | less diverse |
| Hispanic or Latino population | 13.1% (vs Oklahoma 12.3%) |
| White (non-Hispanic) population | 58.1% (at Oklahoma median) |
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).
| Residents born in this state | 291 |
|---|---|
| Residents born in another state | 289 |
| Share born in this state | 50.2% |
| Share born in another state | 49.8% |
| Native-born U.S. citizens | 49.8% |
| Total foreign-born residents | 1,166 |
Households & Family Composition
224 households. Averaging 2.7 people each — larger than the U.S. average of 2.5. 88% are family households — above the U.S. share of ~65%. Of 194 families, 37% are married couples with children.
| Children under 18 | 219 |
|---|---|
| Total families | 194 |
| Married couples with children | 71 |
| Single-parent households | 1 |
| Average household size | 2.74 |
| Women who gave birth (past year) | 12.9% |
| Grandparents living with grandchildren | 1,211 |
| Grandparents responsible for grandchildren | 482 |
| Family households | 197 households (vs Oklahoma 16,590) |
| Households that are families | 87.9% (vs Oklahoma 61.1%) |
| Total households | 224 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. 24.6% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 1,885 residents per year on net (IRS migration data).
| Moved within the county (past year) | 24.6% |
|---|---|
| Migration · People moving in (annual) | 41,429 |
| Migration · People moving out (annual) | 39,544 |
| Migration · Net migration (in − out) | 1,885 |
| 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 | 90 |
|---|---|
| Disability rate | 19.2% |
Other
| Congressional District · District | 2 |
|---|---|
| Congressional District · Formatted | OK-02 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 40013 |
| Cdc Birth Rate · State Fips | 40 |
| Cdc Birth Rate · County Fips | 013 |
| Cdc Birth Rate · County | Bryan |
| Cdc Birth Rate · Birth Rate | 35.8% |
| Cdc Birth Rate · Lower Ci | 31.40 |
| Cdc Birth Rate · Upper Ci | 40.50 |
| Cdc Mortality · Fips | 40013 |
| Cdc Mortality · County | Bryan County |
| Cdc Mortality · Urban Rural | Micropolitan |
| Cdc Mortality · Total Deaths 2020 2023 | 1,985 |
| Cdc Vaccination · Fips | 40013 |
| Cdc Vaccination · County | Bryan County |
| Cdc Vaccination · Dose1 Pop Pct | 54.6% |
| Cdc Vaccination · Series Complete Pct | 45.6% |
| Cdc Vaccination · Booster Pct | 38.0% |
| Cdc Vaccination · Population 2019 | 47,995 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 10 |
| Family Score · Schools | 20 |
| Family Score · Children Pct | 31.0% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 580, declining, family-oriented, middle-class, white collar |
| Town Summary · Population | 580 people (vs Oklahoma 63,420) |
| Town Summary · County | Bryan County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade