- Serena
- Serena Park
- Sereno Del Mar
- Serra Village
- Serrano
- Sespe
- Sespe Village
- Seven Oaks
- Seven Pines
- Seven Trees
- Seville
- Shackelford
- Shackleford Place
- Shadow Mountain Mobile Home Park
- Shadow Ridge Creek
- Shady Dell
- Shady Glen
- Shafter
- Shafter
- Shag Rock
- Shag Rock
- Shake City
- Shandon
- Shannon
- Shannon Place
- Sharon
- Sharon Valley
- Sharp Rock
- Shasta
- Shasta Lake