Demographics & People — Glen St. Mary, Florida
Population Overview
| Population (Census) | 616 |
| Estimated 2026 | ~600 |
| Median Age | 32.7 |
| Total Households | 223 |
| Family Households | 177 |
| Average Household Size | 2.76 |
| Diversity Index | 0.1416 (relatively homogeneous) |
Race & Ethnicity
| White | 566 |
| Black or African American | 0 |
| Asian | 0 |
| Hispanic or Latino | 47 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 319 |
| American | 127 |
| Irish | 107 |
| Other groups | 101 |
| German | 67 |
| Italian | 62 |
| English | 58 |
| Hispanic: Hispanic or Latino | 42 |
| Hispanic: Puerto Rican | 42 |
| Scotch-Irish | 12 |
Language
| English Only | 494 |
| Spanish | 0 |
| Population 5+ | 501 |
Veterans
| Veterans | 76 |
| Population 18+ | 427 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Glen St. Mary, Florida.