| Place Name | Harleyville |
| Place Type | Town |
| ZIP Code(s) | 29448 |
| County | Dorchester County |
| Area Code(s) | 843,854 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 940 |
| Population Growth Rate (2010-19) | -1.62% |
| Majority Ethnicity | White 84.22% |
| Metro/Micro Stats Area | Charleston-North Charleston, SC |
| US Congressional District(s) | South Carolina 6th |
| State House Districts | 102 |
| State Senate Districts | 39 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 84.22% |
| African American | 8.89% |
| Hispanic | 1.11% |
| Asian | 2.33% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.44% |