St. David: Demographics & People
St. David's population stands at 383 people, in 180 households. Population shrank 30.1% from 548 (2022) to 383 (2024). Median age 37.8 years. (6.1y younger than Fulton County; 1.3y younger than Illinois). Children under 18 are 22% of the population. Population is 95% White (non-Hispanic) and 2% Hispanic or Latino. The community is relatively homogeneous (Simpson index 0.02). 54% of households are family-led. County is losing 734 residents per year (2022-2023). County health: 39% adult obesity, 19% smoke.
- 2.1 people per household.
- 46% non-family households (singles, roommates).
Population & Trend
Population shrank 30.1% from 548 (2022) to 383 (2024). Estimated 2026 population: ~276 (extrapolated at -15.1%/yr trend). Census Bureau Vintage estimate: 166.
| Census data vintage | 2024 |
|---|---|
| Population | 33,609 people |
| Annual growth rate · Population change | -30.1% |
| Annual growth rate · Population (2022) | 548 |
| Annual growth rate · Population (2024) | 383 |
| Annual growth rate · Trend category | shrinking |
| Population | 383 people |
| Population Estimate | 166 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 37.8y is 1.1 years younger than the U.S. median (38.9y). Children under 18 make up 22% — near the U.S. share of ~22%.
| Age Summary · Median age | 37.8 years (vs Illinois 39.1y) |
|---|---|
| Age Summary · Children Pct | 22.2% |
| Age Summary · Character | family-oriented |
| Population under 18 | 85 |
| Median age | 37.8 years (vs Illinois 39.1y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 383 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.02 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 537 |
|---|---|
| Asian residents | 3 |
| Hispanic or Latino residents | 3 |
| Diversity Index · Diversity index (Simpson) | 2.2% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 3 |
| Diversity Index · Largest group share | 98.9% |
| Asian population | 1.6% |
| Hispanic or Latino population | 1.6% |
| White (non-Hispanic) population | 95.3% |
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 | 348 |
|---|---|
| Residents born in another state | 21 |
| Share born in this state | 90.9% |
| Share born in another state | 9.1% |
| Native-born U.S. citizens | 5.5% |
| Naturalized citizens | 3.7% |
| Total foreign-born residents | 1 |
| From Europe | 1 |
Households & Family Composition
180 households. Averaging 2.3 people each — smaller than the U.S. average of 2.5. 54% are family households — below the U.S. share of ~65%. Of 154 families, 37% are married couples with children.
| Children under 18 | 105 |
|---|---|
| Total families | 154 |
| Married couples with children | 57 |
| Single-parent households | 2 |
| Average household size | 2.26 |
| Women who gave birth (past year) | 22.9% |
| Grandparents living with grandchildren | 5 |
| Grandparents responsible for grandchildren | 3 |
| Family households | 98 households |
| Households that are families | 54.4% |
| Total households | 180 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. 5.9% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 734 residents per year on net (IRS migration data).
| Moved within the county (past year) | 5.9% |
|---|---|
| Migration · People moving in (annual) | 27,799 |
| Migration · People moving out (annual) | 28,533 |
| Migration · Net migration (in − out) | -734 |
| 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 | 62 |
|---|---|
| Disability rate | 11.5% |
Other
| Congressional District · District | 17 |
|---|---|
| Congressional District · Formatted | IL-17 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 17,057 |
| Cdc Birth Rate · State Fips | 17 |
| Cdc Birth Rate · County Fips | 57 |
| Cdc Birth Rate · County | Fulton |
| Cdc Birth Rate · Birth Rate | 28.5% |
| Cdc Birth Rate · Lower Ci | 23.70 |
| Cdc Birth Rate · Upper Ci | 33.90 |
| Cdc Mortality · Fips | 17,057 |
| Cdc Mortality · County | Fulton County |
| Cdc Mortality · Urban Rural | Micropolitan |
| Cdc Mortality · Total Deaths 2020 2023 | 1,577 |
| Cdc Vaccination · Fips | 17,057 |
| Cdc Vaccination · County | Fulton County |
| Cdc Vaccination · Dose1 Pop Pct | 62.1% |
| Cdc Vaccination · Series Complete Pct | 58.5% |
| Cdc Vaccination · Booster Pct | 58.0% |
| Cdc Vaccination · Population 2019 | 34,340 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 10 |
| Family Score · Schools | 20 |
| Family Score · Children Pct | 22.2% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 383, shrinking, family-oriented, middle-class, blue collar |
| Town Summary · Population | 383 people |
| Town Summary · County | Fulton County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade