Bamberg County is a county located in the southwestern portion of U.S. state of South Carolina. As of the 2020 census, the population was 13,311, making the rural county the fourth-least populous of any in South Carolina. Its county seat is Bamberg.

Bamberg is a city in and the county seat of Bamberg County, South Carolina, United States. The population was 3,607 at the 2010 census.