Cities
United States
- Shasta County
- Shasta Lake
- Shasta
- Shaver Lake
- Shelter Cove
- Shingle Springs
- Shingletown
- Sierra City
- Sierra County
- Sierra Madre
- Sierraville
- Signal Hill
- Silicon Valley
- Silver Lake Reservoir
- Silverado
- Silverwood Lake
- Simi Valley
- Siskiyou County
- Sky Valley
- Skyforest
- Soda Springs
- Solana Beach
- Solano County
- Soledad
- Solvang
- Somerset
- Somis
- Sonoma County
- Sonoma
- Sonora
- Soquel
- Soulsbyville
- South Bay
- South El Monte
- South Gate
- South Lake Tahoe
- South Pasadena
- South San Francisco
- South San Gabriel
- South San Jose Hills
- South Whittier
- Southern California
- Spring Valley
- Stanford
- Stanislaus County
- Stanton
- Stevenson Ranch
- Stinson Beach
- Stockton
- Strawberry
- Sugarloaf
- Suisun City
- Summerland
- Sunnyvale
- Sunol
- Susanville
- Sutter Creek
- Swall Meadows
- Taft
- Tahoe City