| Place Name | Glen St. Mary |
| Place Type | Town |
| ZIP Code(s) | 32040 |
| County | Baker County |
| Area Code(s) | 904 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 517 |
| Population Growth Rate (2010-19) | 5.95% |
| Majority Ethnicity | White 90.71% |
| Metro/Micro Stats Area | Jacksonville, FL |
| US Congressional District(s) | Florida 5th |
| State House Districts | 10 |
| State Senate Districts | 5 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.71% |
| African American | 0.83% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 8.46% |