- Sunny Side
- Surgeon Hall
- Sycamore Island
- Sygan
- Sygan Hill
- Shady Plain
- Shadyside Village
- Sherrett
- Sistersville
- Slabtown
- Smeltzer
- Somerville
- South Bend
- Spaces Corners
- Stringtown
- Sunnyside
- Saint Clair
- Scottsville
- Smiths Ferry
- Sunflower
- Salemville
- Sandy Run
- Silver Mills
- Spring Meadow
- Springhope
- State Line
- Stiefler Corner
- Stone Row
- Stonerstown
- Stringtown