| South Brunswick Township, NJ (Township) |
| South Buffalo Township, PA (Township) |
| South Burlington, VT (City) |
| South Canaan Township, PA (Township) |
| South Carolina, SC (State) |
| South Carrollton, KY (City) |
| South Carthage, TN (Town) |
| South Cedar, NE (Township) |
| South Centre Township, PA (Township) |
| South Charleston, OH (Village) |
| South Charleston, WV (City) |
| South Chicago Heights, IL (Village) |
| South Cle Elum, WA (Town) |
| South Coatesville, PA (Borough) |
| South Coffeyville, OK (Town) |
