| Place Name | Leonardtown |
| Place Type | Town |
| ZIP Code(s) | 20650 |
| County | Saint Marys County |
| Area Code(s) | 240,301 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 2,986 |
| Population Growth Rate (2010-19) | 55.73% |
| Majority Ethnicity | White 73.67% |
| Metro/Micro Stats Area | California-Lexington Park, MD |
| US Congressional District(s) | Maryland 5th |
| House of Delegates Districts | 29A |
| State Senate Districts | 29 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 73.67% |
| African American | 6.19% |
| Hispanic | 0.05% |
| Asian | 5.96% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 14.13% |