- Sea Spray Village
- Seabreak
- Seabreeze
- Seaford
- Seaford Heights
- Seal Island
- Seaside Villas
- Seatowne
- Second Hill
- Sedgley Farms
- Seeneytown
- Selbyville
- Seven Hickories
- Shady Acres Mobile Home Park
- Shady Dell Mobile Home Park
- Shady Grove
- Shady Lane
- Shady Park Mobile Home Park
- Shady Rest Park
- Shady Ridge
- Shady Side
- Shadybrook Farms
- Shaffer Property
- Shaft Ox Corner
- Sharpley
- Shawnee
- Shawnee Acres
- Shawns Hideaway Mobile Home Park
- Shaws Corner
- Sheep Pen Landing