- Sandy Bottom
- Scientists Cliffs
- Seashore Beach
- Shady Hill
- Shady Hill Farm
- Sheckells Hills
- Sherbert
- Shores of Calvert
- Simpsons Farm
- Sleepy Hollow
- Smallet Manor
- Smithbrooke
- Smithville
- Smoky
- Sollers
- Solomons Island
- Somerset
- South Hampton
- Spring Cove
- Springfield
- Spruce Hill
- Stoakley
- Stone Farm
- Summer City
- Summit
- Sunderland Estates
- Sunderland Farms
- Sunderland Hills
- Sunderland Park
- Sunderland Woods