- Severy
- Seward
- Shady Acres Mobile Home Park
- Shady Bend
- Shady Brook
- Shallow Water
- Shamrock Mobile Home Estates
- Shannon
- Sharon
- Sharon Springs
- Sharpe
- Shaw
- Shawnee
- Shawnee Hills Mobile Home Park
- Sherdahl
- Sherman
- Sherwin
- Sherwood Acres Mobile Home Park
- Shields
- Shipton
- Showalter Mobile Home Park
- Shroyer
- Sibleyville
- Silica
- Silkville
- Silver Lake
- Silver Spur III Mobile Home Park
- Silver Spur Mobile Home Park
- Silverdale
- Simpson