- South Fritz Island
- South River
- Sabula
- Saco
- Sacville
- Saddlebrooke
- Sadler
- Safe
- Sage Hill
- Saginaw
- Sagrada
- Saint Albans
- Saint Albans Island
- Saint Ann
- Saint Annie
- Saint Anthony
- Saint Aubert
- Saint Aubert Island
- Saint Catharine
- Saint Charles
- Saint Clair
- Saint Clement
- Saint Cloud
- Saint Cloud
- Saint Elizabeth
- Saint Francisville
- Saint George
- Saint George
- Saint James
- Saint John