Ridgeway is a town in Fairfield County, South Carolina, United States. The population was 319 at the 2010 census. It is part of the Columbia, SC Metropolitan Statistical Area. Blink Bonnie, Camp Welfare, Century House, Hunter House, Mount Hope, Ridgeway Historic District, Ruff's Chapel, St. Stephen's Episcopal Church, Valencia, Vaughn's Stage Coach Stop, …Ridgeway is a town in Fairfield County, South Carolina, United States. The population was 319 at the 2010 census. It is part of the Columbia, SC Metropolitan Statistical Area. Blink Bonnie, Camp Welfare, Century House, Hunter House, Mount Hope, Ridgeway Historic District, Ruff's Chapel, St. Stephen's Episcopal Church, Valencia, Vaughn's Stage Coach Stop, and the Monroe Wilson House are listed on the National Register of Historic Places.