Richburg is a town in Chester County, South Carolina, United States.

South Carolina Highway 9 passes through the northeast side of the town, leading west 13 miles (21 km) to Chester, the county seat, and east 16 miles (26 km) to Lancaster.

According to the United States Census Bureau, Richburg has a total area of 0.89 square miles (2.3 km2), all of it land.

The racial makeup of the town was 23.49% White, 74.70% African American, 1.20% Asian, and 0.60% from two or more races.

24.6% of all households were made up of individuals, and 15.6% had someone living alone who was 65 years of age or older.