- Sylmar
- South Towanda
- Sabinsville
- Sabula
- Sackett
- Sackville
- Saco
- Saco
- Sacramento
- Sadlers Corner
- Sadsbury Meeting House
- Sadsburyville
- Saegers
- Saegersville
- Saegertown
- Safe Harbor
- Sagamore
- Sagamore
- Sagamore Estates
- Saginaw
- Sagon
- Saint Albans
- Saint Augustine
- Saint Benedict
- Saint Boniface
- Saint Charles
- Saint Charles Furnace
- Saint Clair
- Saint Clair
- Saint Clair