- Sachem Head
- Saint Helena Island
- Salem
- Salisbury
- Salt Island
- Salt Rock
- Sandy Beach
- Sandy Hammock
- Sandy Hook
- Sandy Point
- Sandy Point
- Sanfordtown
- Saugatuck
- Saugatuck Shores
- Saunders Point
- Savin Rock
- Saw Island
- Saybrook Point
- Scantic
- Schoonhoven Park
- Scitico
- Scotland
- Scovill Landing
- Scraggy Island
- Sea Bluff
- Seal Rock
- Seal Rocks
- Seaside
- Seaside
- Seaview Beach