Edgefield is a town in Edgefield County, South Carolina, United States. The population was 4,750 at the 2010 census. It is the county seat of Edgefield County.
Edgefield is part of the Augusta, Georgia metropolitan area.
Edgefield is located slightly east of the center of Edgefield County at 33°47′N 81°56′W (33.7868, −81.9278). U.S. Route 25 passes through the southwest part of the town, bypassing the center, and leads north 33 miles (53 km) to Greenwood and south 26 miles (42 km) to Augusta, Georgia. South Carolina Highway 23 passes through the center of the town, leading east 26 miles (42 km) to Batesburg-Leesville and west 17 miles (27 km) to Modoc on U.S. Route 221 near the Savannah River.
According to the United States Census Bureau, Edgefield has a total area of 4.3 square miles (11.1 km2), of which 4.2 square miles (10.8 km2) is land and 0.1 square miles (0.3 km2), or 2.71%, is water.
The story of Edgefield is more than a quarter of a millennium long, reaching back to before the first European settlers arrived, when only Native Americans roamed the forests. At that time the area which later became Edgefield County was a vast wilderness of virgin forests, occasional prairies, great cane brakes, and sparkling rivers and creeks. It was bisected by the fall line, with sandy soils on the southeast side of this line growing primarily pine trees, and rich clay soils on the northwest side growing primarily oak and hickory. Wildlife was abundant with deer and turkey, but also with elk, buffalo (bison), panther, and bear.