| St Clair, PA (Borough) |
| St Clair County, MO (County) |
| St Clair Township, IL (Township) |
| St Clere, KS (Township) |
| St Cloud, MO (Village) |
| St Cloud, WI (Village) |
| St Cloud, MN (City) |
| St Croix, ND (Township) |
| St Croix Falls, WI (City) |
| St Croix Falls, WI (Town) |
| St David, IL (Village) |
| St Donatus, IA (City) |
| St Edward, NE (City) |
| St Elizabeth, MO (Village) |
| St Elmo, IL (City) |
