- Shuetown
- Shultis Corners
- Shumaker Crossing
- Shumla
- Shunpike
- Shurtleff
- Shushan
- Shutter Corners
- Sibleyville
- Sidney
- Sidney Center
- Siegfield Park
- Sierks
- Sigby Corners
- Signal Mobile Home Park
- Siloam
- Silver Bay
- Silver Beach
- Silver Beach
- Silver Creek
- Silver Lake
- Silver Lake
- Silver Lake Junction
- Silver Maples
- Silver Rock Mobile Home Park
- Silver Springs
- Silver Springs
- Silvernails
- Simmons Hassock
- Simmons Island