Grayhawk: Demographics & People
Grayhawk's population stands at 538 people, in 260 households. Population shrank 2.9% from 554 (2022) to 538 (2024). Median age 46.1 years. (2.8y older than Ste. Genevieve County; 6.9y older than Missouri). Children under 18 are 30% of the population. Population is 100% White (non-Hispanic). The community is relatively homogeneous (Simpson index 0.00). 52% of households are family-led. County health: 37% adult obesity, 21% smoke.
- 2.1 people per household.
- 48% non-family households (singles, roommates).
Population & Trend
Population shrank 2.9% from 554 (2022) to 538 (2024). Estimated 2026 population: ~522 (extrapolated at -1.4%/yr trend). Census Bureau Vintage estimate: 502.
| Census data vintage | 2024 |
|---|---|
| Population | 18,479 people |
| Annual growth rate · Population change | -2.9% |
| Annual growth rate · Population (2022) | 554 |
| Annual growth rate · Population (2024) | 538 |
| Annual growth rate · Trend category | declining |
| Population | 538 people |
| Population Estimate | 502 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 46.1y is 7.2 years older than the U.S. median (38.9y). Children under 18 make up 30% — above the U.S. share of ~22%.
| Age Summary · Median age | 46.1 years (vs Missouri 39.2y) |
|---|---|
| Age Summary · Children Pct | 29.7% |
| Age Summary · Character | established |
| Population under 18 | 160 |
| Median age | 46.1 years (vs Missouri 39.2y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 538 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 | 554 |
|---|---|
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 1 |
| Diversity Index · Largest group share | 100.0% |
| White (non-Hispanic) population | 100.0% |
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 | 444 |
|---|---|
| Residents born in another state | 94 |
| Share born in this state | 82.5% |
| Share born in another state | 17.5% |
| Native-born U.S. citizens | 17.5% |
| Total foreign-born residents | 16 |
| From Europe | 16 |
Households & Family Composition
260 households. Averaging 2.2 people each — smaller than the U.S. average of 2.5. 52% are family households — below the U.S. share of ~65%. Of 132 families, 35% are married couples with children.
| Children under 18 | 176 |
|---|---|
| Total families | 132 |
| Married couples with children | 46 |
| Single-parent households | 39 |
| Average household size | 2.25 |
| Women who gave birth (past year) | 7.2% |
| Grandparents living with grandchildren | 6 |
| Family households | 135 households |
| Households that are families | 51.9% |
| Total households | 260 households |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 16.2% moved within the county in the past year — the U.S. baseline is roughly 8–10%.
| Moved within the county (past year) | 16.2% |
|---|---|
| Migration · People moving in (annual) | 17,287 |
| Migration · People moving out (annual) | 17,313 |
| Migration · Net migration (in − out) | -26 |
| 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 | 123 |
|---|---|
| Disability rate | 14.2% |
Other
| Congressional District · District | 8 |
|---|---|
| Congressional District · Formatted | MO-08 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 29,186 |
| Cdc Birth Rate · State Fips | 29 |
| Cdc Birth Rate · County Fips | 186 |
| Cdc Birth Rate · County | Ste Genevieve |
| Cdc Birth Rate · Birth Rate | 20.8% |
| Cdc Birth Rate · Lower Ci | 15.80 |
| Cdc Birth Rate · Upper Ci | 26.80 |
| Cdc Mortality · Fips | 29,186 |
| Cdc Mortality · County | Ste. Genevieve County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 589 |
| Cdc Vaccination · Fips | 29,186 |
| Cdc Vaccination · County | Ste. Genevieve County |
| Cdc Vaccination · Dose1 Pop Pct | 50.7% |
| Cdc Vaccination · Series Complete Pct | 46.3% |
| Cdc Vaccination · Booster Pct | 54.1% |
| Cdc Vaccination · Population 2019 | 17,894 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 1.50 |
| Family Score · Schools | 1 |
| Family Score · Children Pct | 29.7% |
| Family Score · Rating | limited |
| Town Summary · Key Facts | population 538, declining, established, working-class, blue collar |
| Town Summary · Population | 538 people |
| Town Summary · County | Ste. Genevieve County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade