St. Augustine Shores: Demographics & People
Census counts 9,462 people in St. Augustine Shores, in 4,343 households. Population shrank 4.6% from 9,921 (2022) to 9,462 (2024). Median age 52.8 years. (8.6y older than St. Johns County; 10.2y older than Florida). Children under 18 are 16% of the population. Population is 89% White (non-Hispanic) and 5% Hispanic or Latino. The community is relatively homogeneous (Simpson index 0.16). 61% of households are family-led. County is gaining 33,939 residents per year (2022-2023). County health: 26% adult obesity, 9% smoke.
- 2.2 people per household (vs Florida avg 2.6).
- 39% non-family households (singles, roommates) (vs Florida 35%).
Population & Trend
Population shrank 4.6% from 9,921 (2022) to 9,462 (2024). Estimated 2026 population: ~9,028 (extrapolated at -2.3%/yr trend). Census Bureau Vintage estimate: 8,470.
| Census data vintage | 2024 |
|---|---|
| Population | 273,425 people |
| Annual growth rate · Population change | -4.6% |
| Annual growth rate · Population (2022) | 9,921 |
| Annual growth rate · Population (2024) | 9,462 |
| Annual growth rate · Trend category | declining |
| Population | 9,462 people (vs Florida 58,838) |
| Population Estimate | 8,470 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 52.8y is 13.9 years older than the U.S. median (38.9y). Children under 18 make up 16% — below the U.S. share of ~22%.
| Age Summary · Median age | 52.8 years (vs Florida 40.9y) |
|---|---|
| Age Summary · Children Pct | 15.9% |
| Age Summary · Character | retirement community |
| Population under 18 | 1,506 |
| Median age | 52.8 years (vs Florida 40.9y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 9,462 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups). The Simpson diversity index is 0.16 (0 = single group, 1 = perfectly even distribution); this is read as relatively homogeneous.
| White residents | 9,253 |
|---|---|
| Black residents | 184 |
| Asian residents | 50 |
| Hispanic or Latino residents | 652 |
| Diversity Index · Diversity index (Simpson) | 16.3% |
| Diversity Index · Diversity label | relatively homogeneous |
| Diversity Index · Groups counted | 4 |
| Diversity Index · Largest group share | 91.3% |
| Asian population | 0.8% (vs Florida 2.5%) |
| Black population | 1.0% (vs Florida 13.0%) |
| Hispanic or Latino population | 4.9% (vs Florida 23.4%) |
| White (non-Hispanic) population | 88.8% (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). 0.9% are foreign-born — below the U.S. average of 13.9%. 5% have naturalized to U.S. citizenship.
| Residents born in this state | 2,547 |
|---|---|
| Residents born in another state | 6,317 |
| Share born in this state | 26.9% |
| Share born in another state | 73.1% |
| Native-born U.S. citizens | 66.8% |
| Foreign-born residents | 0.9% |
| Naturalized citizens | 5.4% |
| Total foreign-born residents | 812 |
| From Europe | 430 |
| From Africa | 196 |
Households & Family Composition
4,343 households. Averaging 2.3 people each — smaller than the U.S. average of 2.5. 61% are family households — below the U.S. share of ~65%. Of 2,902 families, 18% are married couples with children.
| Children under 18 | 1,598 |
|---|---|
| Total families | 2,902 |
| Married couples with children | 513 |
| Single-parent households | 22 |
| Average household size | 2.26 |
| Women who gave birth (past year) | 22.2% |
| Grandparents living with grandchildren | 2,872 |
| Grandparents responsible for grandchildren | 1,045 |
| Family households | 2,664 households (vs Florida 15,074) |
| Households that are families | 61.3% (vs Florida 64.6%) |
| Total households | 4,343 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. 9.5% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is gaining 33,939 residents per year on net (IRS migration data).
| Moved within the county (past year) | 9.5% |
|---|---|
| Migration · People moving in (annual) | 334,131 |
| Migration · People moving out (annual) | 300,192 |
| Migration · Net migration (in − out) | 33,939 |
| 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 | 814 |
|---|---|
| Disability rate | 8.2% |
Group Quarters
Group quarters are non-household living arrangements counted by the Census — college dormitories, nursing homes, military barracks, group homes, correctional facilities, and similar institutional or shared housing. 53 residents live in group quarters (0.6% of population).
| Living in group quarters | 53 |
|---|
Other
| Congressional District · District | 6 |
|---|---|
| Congressional District · Formatted | FL-06 |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 12,109 |
| Cdc Birth Rate · State Fips | 12 |
| Cdc Birth Rate · County Fips | 109 |
| Cdc Birth Rate · County | St Johns |
| Cdc Birth Rate · Birth Rate | 6.7% |
| Cdc Birth Rate · Lower Ci | 5.80 |
| Cdc Birth Rate · Upper Ci | 7.60 |
| Cdc Mortality · Fips | 12,109 |
| Cdc Mortality · County | St. Johns County |
| Cdc Mortality · Urban Rural | Large fringe metro |
| Cdc Mortality · Total Deaths 2020 2023 | 6,791 |
| Cdc Vaccination · Fips | 12,109 |
| Cdc Vaccination · County | St. Johns County |
| Cdc Vaccination · Dose1 Pop Pct | 81.2% |
| Cdc Vaccination · Series Complete Pct | 72.8% |
| Cdc Vaccination · Booster Pct | 50.2% |
| Cdc Vaccination · Population 2019 | 264,672 |
| Cdc Vaccination · Metro Status | Metro |
| Family Score · Score | 3.50 |
| Family Score · Schools | 5 |
| Family Score · Children Pct | 15.9% |
| Family Score · Rating | fair |
| Town Summary · Key Facts | population 9,462, declining, retirement community, middle-class, mixed |
| Town Summary · Population | 9,462 people (vs Florida 58,838) |
| Town Summary · County | St. Johns County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade