Towns
| State | City/Town | Town Title |
|---|---|---|
| California | Soulsbyville | Soulsbyville, CA |
| California | South Alpine County | South Alpine County, CA |
| California | South Dos Palos | South Dos Palos, CA |
| California | South El Monte | South El Monte, CA |
| California | South Gate | South Gate, CA |
| California | South Lake Tahoe | South Lake Tahoe, CA |
| California | South Pasadena | South Pasadena, CA |
| California | South San Francisco | South San Francisco, CA |
| California | Sparkle | Sparkle, CA |
| California | Spreckels | Spreckels, CA |
| California | Spring Valley | Spring Valley, CA |
| California | Springville | Springville, CA |
| California | Squaw Valley | Squaw Valley, CA |
| California | St. Helena | St. Helena, CA |
| California | Standard | Standard, CA |
| California | Standish | Standish, CA |
| California | Stanford | Stanford, CA |
| California | Stanton | Stanton, CA |
| California | Stevenson Ranch | Stevenson Ranch, CA |
| California | Stevinson | Stevinson, CA |
| California | Stewarts Point | Stewarts Point, CA |
| California | Stinson Beach | Stinson Beach, CA |
| California | Stirling City | Stirling City, CA |
| California | Stockton | Stockton, CA |
| California | Stonyford | Stonyford, CA |