St. George Island: Demographics & People
St. George Island is home to 1,133 people, in 557 households. Population shrank 7.0% from 1,218 (2022) to 1,133 (2024). Median age 60.8 years. (10.7y older than Franklin County; 18.2y older than Florida). Children under 18 are 5% of the population. Population is 95% White (non-Hispanic) and 3% Hispanic or Latino. The community is relatively homogeneous (Simpson index 0.03). 70% of households are family-led. County is gaining 391 residents per year (2022-2023). County health: 38% adult obesity, 20% smoke.
- 2.0 people per household (vs Florida avg 2.6).
- 30% non-family households (singles, roommates) (vs Florida 35%).
Population & Trend
Population shrank 7.0% from 1,218 (2022) to 1,133 (2024). Estimated 2026 population: ~1,055 (extrapolated at -3.5%/yr trend). Census Bureau Vintage estimate: 956.
| Census data vintage | 2024 |
|---|---|
| Population | 12,451 people |
| Annual growth rate · Population change | -7.0% |
| Annual growth rate · Population (2022) | 1,218 |
| Annual growth rate · Population (2024) | 1,133 |
| Annual growth rate · Trend category | shrinking |
| Population | 1,133 people (vs Florida 58,838) |
| Population Estimate | 956 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 60.8y is 21.9 years older than the U.S. median (38.9y). Children under 18 make up 5% — below the U.S. share of ~22%.
| Age Summary · Median age | 60.8 years (vs Florida 40.9y) |
|---|---|
| Age Summary · Children Pct | 4.6% |
| Age Summary · Character | retirement community |
| Population under 18 | 52 |
| Median age | 60.8 years (vs Florida 40.9y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 1,133 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.03 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 1,186 |
|---|---|
| Hispanic or Latino residents | 17 |
| Diversity Index · Diversity index (Simpson) | 2.8% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 2 |
| Diversity Index · Largest group share | 98.6% |
| Hispanic or Latino population | 3.1% (vs Florida 23.4%) |
| White (non-Hispanic) population | 94.8% (vs Florida 46.8%) |
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 (8)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 3.8% are foreign-born — below the U.S. average of 13.9%. 2% have naturalized to U.S. citizenship.
| Residents born in this state | 101 |
|---|---|
| Residents born in another state | 961 |
| Share born in this state | 8.9% |
| Share born in another state | 91.1% |
| Native-born U.S. citizens | 84.8% |
| Foreign-born residents | 3.8% |
| Naturalized citizens | 2.5% |
| Total foreign-born residents | 42 |
| From Europe | 42 |
Households & Family Composition
557 households. Averaging 2.1 people each — smaller than the U.S. average of 2.5. 70% are family households — above the U.S. share of ~65%. Of 366 families, 11% are married couples with children.
| Children under 18 | 114 |
|---|---|
| Total families | 366 |
| Married couples with children | 40 |
| Average household size | 2.14 |
| Women who gave birth (past year) | 3.8% |
| Grandparents living with grandchildren | 481 |
| Grandparents responsible for grandchildren | 123 |
| Family households | 392 households (vs Florida 15,074) |
| Households that are families | 70.4% (vs Florida 64.6%) |
| Total households | 557 households (vs Florida 22,144) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 25.4% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 391 residents per year on net (IRS migration data).
| Moved within the county (past year) | 25.4% |
|---|---|
| Migration · People moving in (annual) | 9,256 |
| Migration · People moving out (annual) | 8,865 |
| Migration · Net migration (in − out) | 391 |
| 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 | 49 |
|---|---|
| Disability rate | 5.1% |
Other
| Congressional District · District | 2 |
|---|---|
| Congressional District · Formatted | FL-02 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 12,037 |
| Cdc Birth Rate · State Fips | 12 |
| Cdc Birth Rate · County Fips | 37 |
| Cdc Birth Rate · County | Franklin |
| Cdc Birth Rate · Birth Rate | 52.9% |
| Cdc Birth Rate · Lower Ci | 40.70 |
| Cdc Birth Rate · Upper Ci | 67.40 |
| Cdc Mortality · Fips | 12,037 |
| Cdc Mortality · County | Franklin County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 367 |
| Cdc Vaccination · Fips | 12,037 |
| Cdc Vaccination · County | Franklin County |
| Cdc Vaccination · Dose1 Pop Pct | 55.8% |
| Cdc Vaccination · Series Complete Pct | 49.6% |
| Cdc Vaccination · Booster Pct | 46.4% |
| Cdc Vaccination · Population 2019 | 12,125 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 3.50 |
| Family Score · Schools | 5 |
| Family Score · Children Pct | 4.6% |
| Family Score · Rating | fair |
| Town Summary · Key Facts | population 1,133, shrinking, retirement community, affluent, white collar |
| Town Summary · Population | 1,133 people (vs Florida 58,838) |
| Town Summary · County | Franklin County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade