Shamrock: Demographics & People
Census counts 94 people in Shamrock, in 47 households. Population grew 141.0% from 39 (2022) to 94 (2024). Median age 51.9 years. (11.5y older than Creek County; 16.7y older than Oklahoma). Children under 18 are 13% of the population. Population is 100% White (non-Hispanic). 43% of households are family-led. County is gaining 2,244 residents per year (2022-2023). County health: 39% adult obesity, 18% smoke.
- 2.0 people per household (vs Oklahoma avg 2.6).
- 57% non-family households (singles, roommates) (vs Oklahoma 39%).
- 34 dependents per 100 working-age (youth + seniors / 18-64) (vs Oklahoma 67).
Population & Trend
Population grew 141.0% from 39 (2022) to 94 (2024) — about 235.1× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~273 (extrapolated at 70.5%/yr trend). Census Bureau Vintage estimate: 732.
| Census data vintage | 2024 |
|---|---|
| Population | 71,754 people |
| Annual growth rate · Population change | 141.0% |
| Annual growth rate · Population (2022) | 39 |
| Annual growth rate · Population (2024) | 94 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | booming |
| Population | 94 people (vs Oklahoma 63,420) |
| Population Estimate | 732 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 51.9y is 13.0 years older than the U.S. median (38.9y). Children under 18 make up 13% — below the U.S. share of ~22%.
| Age Summary · Median age | 51.9 years (vs Oklahoma 35.2y) |
|---|---|
| Age Summary · Children Pct | 12.8% |
| Age Summary · Character | retirement community |
| Age Summary · Total Pop | 94 |
| Age Summary · Under 18 | 12 |
| Age Summary · 18 To 34 | 15.0× |
| Age Summary · 35 To 64 | 55.0× |
| Age Summary · 65 Plus | 12 |
| Population under 18 | 12 |
| Median age | 51.9 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 94 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White residents | 39 |
|---|---|
| Diversity Index · Simpson Index | 48.6% |
| Diversity Index · Interpretation | moderately diverse |
| White (non-Hispanic) population | 100.0% (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 (2)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS).
| Residents born in this state | 39 |
|---|---|
| Residents born in another state | 55 |
| Share born in this state | 41.5% |
| Share born in another state | 58.5% |
| Native-born U.S. citizens | 58.5% |
| Total foreign-born residents | 1,371 |
Households & Family Composition
47 households. Averaging 1.7 people each — smaller than the U.S. average of 2.5. 43% are family households — below the U.S. share of ~65%. Of 10 families, 0% are married couples with children.
| Total families | 10 |
|---|---|
| Average household size | 1.70 |
| Women who gave birth (past year) | 19.1% |
| Grandparents living with grandchildren | 1,788 |
| Grandparents responsible for grandchildren | 682 |
| Family households | 20 households (vs Oklahoma 16,590) |
| Households that are families | 42.6% (vs Oklahoma 61.1%) |
| Total households | 47 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. The surrounding county is gaining 2,244 residents per year on net (IRS migration data).
| Lived in same home a year ago | 94.0% |
|---|---|
| Migration · People moving in (annual) | 66,674 |
| Migration · People moving out (annual) | 64,430 |
| Migration · Net migration (in − out) | 2,244 |
| Migration · Population growing | Yes |
| Migration · Year | 2022-2023 |
Sources: IRS SOI Migration 2021-2022 · Refreshed 2026-04-12
Other
| Congressional District · District | 3 |
|---|---|
| Congressional District · Formatted | OK-03 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 40037 |
| Cdc Birth Rate · State Fips | 40 |
| Cdc Birth Rate · County Fips | 037 |
| Cdc Birth Rate · County | Creek |
| Cdc Birth Rate · Birth Rate | 27.0% |
| Cdc Birth Rate · Lower Ci | 23.80 |
| Cdc Birth Rate · Upper Ci | 30.50 |
| Cdc Mortality · Fips | 40037 |
| Cdc Mortality · County | Creek County |
| Cdc Mortality · Urban Rural | Medium metro |
| Cdc Mortality · Total Deaths 2020 2023 | 2,090 |
| Cdc Vaccination · Fips | 40037 |
| Cdc Vaccination · County | Creek County |
| Cdc Vaccination · Dose1 Pop Pct | 53.3% |
| Cdc Vaccination · Series Complete Pct | 45.9% |
| Cdc Vaccination · Booster Pct | 43.9% |
| Cdc Vaccination · Population 2019 | 71,522 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 10 |
| Family Score · Schools | 20 |
| Family Score · Children Pct | 12.8% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 94, booming, retirement community, lower-income, white collar |
| Town Summary · Population | 94 people (vs Oklahoma 63,420) |
| Town Summary · County | Creek County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade