South Carolina's 7th congressional district is a congressional district for the United States House of Representatives in South Carolina, established in 2011 following apportionment of another seat to the state in the redistricting cycle following the 2010 census. It is located in the Pee Dee region, and includes all of Chesterfield, Darlington, Dillon, Georgetown, Horry, Marion, and Marlboro Counties and most of Florence County. The district is represented by Republican Russell Fry who was elected in 2022 and took office on January 3, 2023.

Chesterfield County is a county located in the U.S. state of South Carolina. As of the 2020 census, its population was 43,273. Its county seat is Chesterfield. The largest community in the county is Cheraw. It is located north of the Midlands, in the Pee Dee region, on its border with North Carolina.