- Shetland Hills
- Silver Gate Village
- Silver Hill Farm
- Silver Manor
- Silver Meadow
- Silver Spring Station
- Silver Woods
- Silverbrook Farm
- Silvergate East
- Sleepy Hollow Mobile Home Park
- Sollers
- Sollers Point
- Sorrento
- Sorrento Run
- Southfield at Whitemarsh
- Southland Hills
- Sparks
- Sparrows Point
- Spook Hill
- Spring Hill
- Spring Valley Farms
- Springdale
- Springhill Farms
- Springlake
- Stab
- Stablers Manor
- Stablersville
- Stanbrook
- Stansbury Estates
- Steeplechase