- Singing River Island
- Slaughter Flat Landing
- South Pascagoula
- Spanish Oak Mobile Home Park
- Straw Island
- Stevens
- Services Island
- Stonington
- Santee
- Society Hill
- Sand Hill
- Service
- Shady Grove
- Sharon
- Shelton
- Spencer
- Springhill
- Swan Island
- Swiftwater
- Sciples Mill
- Smithtown
- Strengthford
- Sucarnoochee
- Sapa
- Shady Grove
- Southland Park
- Spring Hill
- Spring Valley
- Saukum
- Splinter