- Sparta
- Spencer
- Spring Valley
- Springdale
- Springfield
- Stafford
- Sugar Grove
- Summerfield
- Sunbury
- Sabina
- Savannah
- Scio
- Sebring
- Shawnee Hills
- Sherwood
- Silver Lake
- Silverton
- Sinking Spring
- Smithville
- South Amherst
- South Charleston
- South Lebanon
- Stockport
- Strasburg
- Sugarcreek
- Summerside
- Swanton
- Syracuse
- Scotland
- South Newbury