Rockville is a town in Charleston County, South Carolina, United States, that was founded in 1784.

[6] Rockville is located on Wadmalaw Island in southwestern Charleston County at 32°36′11″N 80°11′49″W / 32.60306°N 80.19694°W / 32.60306; -80.19694 (32.602932, -80.196942),[7] at the south end of South Carolina Highway 700, on the north bank of tidal Bohicket Creek, an arm of the North Edisto River.

[5] As of the 2020 United States census, there were 141 people, 66 households, and 36 families residing in the town.

The racial makeup of the town was 86.86% White, 11.68% African American, 1.46% from other races.

Riley A Bradham II Henry Holst, Mayor Pro Tem, Frank Thornhill, Judy Suggs, David Dunn