Pine Ridge is an unincorporated community and census-designated place (CDP) in Darlington County, South Carolina, United States.

[4] The CDP is in northwestern Darlington County, along South Carolina Highway 151, which leads southeast 6 miles (10 km) to Hartsville and northwest 7 miles (11 km) to McBee.

A portion of the eastern border of the CDP follows Black Creek, a southeast-flowing tributary of the Great Pee Dee River, and the south border of the CDP follows Beaverdam Creek, an east-flowing tributary of Black Creek.

The H. B. Robinson Nuclear Generating Station is just outside the northeast border of the CDP, adjacent to Lake Robinson, a reservoir built on Black Creek.

This South Carolina state location article is a stub.