- Saint David
- Saint Francisville
- Saint Peter
- Sainte Marie
- Savoy
- Scottville
- Seaton
- Shipman
- Sims
- Sleepy Hollow
- Smithton
- Spring Bay
- Spring Grove
- Standard
- Staunton
- Strawn
- Sublette
- Smothersville
- Steel City
- Senate Island
- Sepo
- Seville
- Sturgeon Island
- Spar Island
- Sand Ridge
- Skinner Island
- Stockdale
- Sugar Island
- Saint Mary
- Stillwell