- Saint Francisville
- Saint Gabriel
- Saint James
- Saint Joseph
- Saint Martinville
- Saint Maurice
- Saint Rose
- Saline
- Sarepta
- Schriever
- Scott
- Shenandoah
- Shongaloo
- Shreveport
- Sibley
- Sicily Island
- Sikes
- Simmesport
- Simpson
- Simsboro
- Singer
- Siracusaville
- Slaughter
- Slidell
- Sorrel
- Sorrento
- South Mansfield
- South Vacherie
- Spearsville
- Spokane
- Springfield
- Springhill
- Stanley
- Stanley
- Starks
- Start
- Sterlington
- Stonewall
- Sugartown
- Sulphur
- Sun
- Sunset
- Supreme
- Swartz
