| Place Name | St. Marks |
| Place Type | City |
| ZIP Code(s) | 32327 32355 |
| County | Wakulla County |
| Area Code(s) | 850 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 253 |
| Population Growth Rate (2010-19) | -6.48% |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Tallahassee, FL |
| US Congressional District(s) | Florida 2nd |
| State House Districts | 7 |
| State Senate Districts | 3 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |