Towns
| State | City/Town | Town Title |
|---|---|---|
| Pennsylvania | Shrewsbury | Shrewsbury, PA |
| Pennsylvania | Shunk | Shunk, PA |
| Pennsylvania | Sidman | Sidman, PA |
| Pennsylvania | Sigel | Sigel, PA |
| Pennsylvania | Silver Spring | Silver Spring, PA |
| Pennsylvania | Silverdale | Silverdale, PA |
| Pennsylvania | Sinnamahoning | Sinnamahoning, PA |
| Pennsylvania | Sipesville | Sipesville, PA |
| Pennsylvania | Six Mile Run | Six Mile Run, PA |
| Pennsylvania | Skippack | Skippack, PA |
| Pennsylvania | Skytop | Skytop, PA |
| Pennsylvania | Slate Run | Slate Run, PA |
| Pennsylvania | Slatedale | Slatedale, PA |
| Pennsylvania | Slatington | Slatington, PA |
| Pennsylvania | Slickville | Slickville, PA |
| Pennsylvania | Sligo | Sligo, PA |
| Pennsylvania | Slippery Rock | Slippery Rock, PA |
| Pennsylvania | Slovan | Slovan, PA |
| Pennsylvania | Smethport | Smethport, PA |
| Pennsylvania | Smicksburg | Smicksburg, PA |
| Pennsylvania | Smithfield | Smithfield, PA |
| Pennsylvania | Smithmill | Smithmill, PA |
| Pennsylvania | Smithton | Smithton, PA |
| Pennsylvania | Smock | Smock, PA |
| Pennsylvania | Smokerun | Smokerun, PA |