Demographics & People — St. Augustine South, Florida
Population Overview
| Population (Census) | 4,864 |
| Estimated 2026 | ~4,400 |
| Median Age | 50.4 |
| Total Households | 2,113 |
| Family Households | 1,401 |
| Average Household Size | 2.29 |
| Diversity Index | 0.2128 (somewhat diverse) |
Race & Ethnicity
| White | 4,298 |
| Black or African American | 66 |
| Asian | 249 |
| Hispanic or Latino | 248 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 1,358 |
| Irish | 1,014 |
| Other groups | 907 |
| German | 752 |
| Italian | 636 |
| English | 452 |
| French (except Basque) | 370 |
| Hispanic: Hispanic or Latino | 321 |
| Welsh | 231 |
| Hispanic: Puerto Rican | 211 |
Language
| English Only | 4,354 |
| Spanish | 39 |
| Population 5+ | 4,553 |
Veterans
| Veterans | 425 |
| Population 18+ | 4,336 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for St. Augustine South, Florida.