- Shucktown
- Shuford
- Shuqualak
- Sibley
- Sibleyton
- Sidon
- Signal
- Siloam
- Silver City
- Silver Creek
- Silver Creek Acres
- Silver Run
- Silver Springs
- Simmons Mobile Home Park
- Simmonsville
- Simonds
- Simpson
- Simrall
- Sinai
- Singing River Island
- Singleton
- Singleton Settlement
- Sipsey Fork
- Sisloff Junction
- Siwel
- Skene
- Skuna
- Skyline
- Slate Spring
- Slaughter Flat Landing