- Saline City
- Shady Lane
- Six Points
- Stearleyville
- Scircleville
- Schooler Point Landing
- Self Island
- Sulphur
- Sulphur Springs
- Switzer Crossroads
- Sandy Hook
- South Washington
- Sand Run
- Sparta
- Saint Maurice
- Saint Omer
- Sandusky
- Slabtown
- Smiths Crossing
- Smyrna
- Saint Johns
- Sedan
- Stafford Center
- Summit
- Shideler
- Smithfield
- Stockport
- Saint Henry
- Saint Marks
- Southwest