Clearwater is a census-designated place (CDP) in Aiken County, South Carolina, United States. It lies near North Augusta, South Carolina, and is part of the Augusta, Georgia metropolitan area. Clearwater is located in historic Horsecreek Valley. The population was 4,199 at the 2000 census.
Clearwater is located at 33°30′20″N 81°54′27″W / 33.50556°N 81.9075°W / 33.50556; -81.9075 (33.505597, -81.907585).
According to the United States Census Bureau, the CDP has a total area of 4.3 square miles (11.1 km²), of which, 4.3 square miles (11.1 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.47%) is water.