- Stacey
- Saugus
- Shigley Mobile Home Park
- Seven Sisters Island
- Snake Island
- Skinners Island
- Slab Crossing
- Snowden
- Sprole
- Sloan
- Steamboat Island
- Sciuchetti Place
- Silver Bow
- Silver Bow Park
- Skones
- Springtime
- Sioux Crossing
- Sourdough
- Saypo
- Saint Mary
- Saint Phillip
- Saltese
- Sand Coulee
- Sand Springs
- Sanders
- Santa Rita
- Sappington
- Sarpy
- Savage
- Savoy