Marlboro County is located in the northeast section of South Carolina between Dillon and Chesterfield counties on the North Carolina border. It is most recognized for its manmade lake, built in 1951, named Lake Paul Wallace after the late Senator Paul Wallace.

Population: 2001 census: 30,200

Recruiting industry for Marlboro County is the number one concern because of high unemployment rate. In 1989, a state prison was built and in the year 2002 a federal prison is in the process of being built.