- Shields
- Sibley Island (historical)
- Silva
- Silverleaf
- Simcoe
- Sims
- Six Mile Corner
- Skaar
- Sky Way Mobile Home Park
- Sonora
- Soranton
- South Prairie
- South West Fargo
- Southam
- Spiritwood
- Spotted Horn
- Squaw Gap
- Stady
- Stampede
- Stardust Terrace
- Sterling
- Stiles
- Still
- Stirum
- Straubville
- Strawberry Island (historical)
- Sully Springs
- Sundale Colony
- Sunday Island (historical)
- Sunny