Towns
| State | City/Town | Town Title |
|---|---|---|
| California | Santa Ynez | Santa Ynez, CA |
| California | Santa Ysabel | Santa Ysabel, CA |
| California | Santee | Santee, CA |
| California | Saratoga | Saratoga, CA |
| California | Sausalito | Sausalito, CA |
| California | Scotia | Scotia, CA |
| California | Scott Bar | Scott Bar, CA |
| California | Scotts Valley | Scotts Valley, CA |
| California | Seal Beach | Seal Beach, CA |
| California | Seaside | Seaside, CA |
| California | Sebastopol | Sebastopol, CA |
| California | Seeley | Seeley, CA |
| California | Seiad Valley | Seiad Valley, CA |
| California | Selma | Selma, CA |
| California | Sequoia National Park | Sequoia National Park, CA |
| California | Shafter | Shafter, CA |
| California | Shandon | Shandon, CA |
| California | Shasta | Shasta, CA |
| California | Shasta Lake | Shasta Lake, CA |
| California | Shaver Lake | Shaver Lake, CA |
| California | Sheep Ranch | Sheep Ranch, CA |
| California | Sheridan | Sheridan, CA |
| California | Sherman Oaks | Sherman Oaks, CA |
| California | Shingle Springs | Shingle Springs, CA |
| California | Shingletown | Shingletown, CA |