| Place Name | Lake Mystic |
| Place Type | Census Designated Place |
| ZIP Code(s) | 32321 |
| County | Liberty County |
| Area Code(s) | 850 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 492 |
| Population Growth Rate (2010-19) | 2.00% |
| Majority Ethnicity | White 82.71% |
| US Congressional District(s) | Florida 2nd |
| State House Districts | 7 |
| State Senate Districts | 3 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 82.71% |
| African American | 0% |
| Hispanic | 17.29% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |