
Hartsville
- County:
- Darlington County
- County Seat:
- No
- Area (mi²):
- 5.99
- State:
- South Carolina
Hartsville is a city located in Darlington County, South Carolina. Hartsville has a 2025 population of 7,378. Hartsville is currently declining at a rate of -0.14% annually and its population has decreased by -0.7% since the most recent census, which recorded a population of 7,430 in 2020.
The average household income in Hartsville is $71,226 with a poverty rate of 23.55%. The median age in Hartsville is 34.3 years: 31 years for males, and 35.5 years for females.