About This Place
Blackville is a town in Barnwell County, South Carolina, United States. The population was 2,973 at the 2000 census.
Blackville is located at 33°21′25″N 81°16′22″W / 33.35694°N 81.27278°W / 33.35694; -81.27278 (33.357078, -81.272649).
According to the United States Census Bureau, the town has a total area of 9.3 square miles (24.0 km²), of which, 9.2 square miles (23.7 km²) of it is land and 0.1 square miles (0.3 km²) of it (1.19%) is water.