Clarks Hill is a census-designated place (CDP) in McCormick County, South Carolina, United States.

[5] The Hopewell Rosenwald School was listed on the National Register of Historic Places in 2010.

[7] According to the United States Census Bureau, the CDP has a total area of 3.2 square miles (8.3 km2), all land.

They have brown sandy loam topsoils which are underlain by red clay.

This fine-textured material may form a distinct layer or comprise the entire subsoil.