| Place Name | Hartly |
| Place Type | Town |
| ZIP Code(s) | 19953 |
| County | Kent County |
| Area Code(s) | 302 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 42 |
| Population Growth Rate (2010-19) | -1.35% |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Dover, DE |
| US Congressional District(s) | Delaware At-Large |
| State House Districts | 11 |
| State Senate Districts | 15 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |