Demographics & People — St. Marks, Florida
Population Overview
| Population (Census) | 273 |
|---|
| Estimated 2026 | ~200 |
|---|
| Median Age | 61.0 |
|---|
| Total Households | 137 |
|---|
| Family Households | 104 |
|---|
| Average Household Size | 1.99 |
|---|
| Diversity Index | 0.0 (relatively homogeneous) |
|---|
Race & Ethnicity
| White | 267 |
|---|
| Black or African American | 0 |
|---|
| Asian | 0 |
|---|
| Hispanic or Latino | 0 |
|---|
Heritage & Ancestry
| Group | Count |
|---|
| Unclassified or not reported | 180 |
| American | 33 |
| Other groups | 24 |
| Irish | 19 |
| European | 15 |
| Polish | 8 |
| Dutch | 7 |
| English | 6 |
| Scandinavian | 6 |
| Czech | 5 |
Language
| English Only | 267 |
|---|
| Spanish | 0 |
|---|
| Population 5+ | 270 |
|---|
Veterans
| Veterans | 52 |
|---|
| Population 18+ | 283 |
|---|
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for St. Marks, Florida.
