- Scriba
- Scribner Corners
- Scuttlehole
- Sea Breeze
- Sea Cliff
- Sea Dog Island
- Seaford
- Seagate
- Seager
- Seager Trailer Park
- Seamans Island
- Searingtown
- Sears Corners
- Sears Island (historical)
- Sears Islands
- Searsburg
- Searsville
- Seaside
- Seaside
- Seasons of East Meadow
- Seaview
- Sebastian Mobile Home Park
- Second Island
- Second Island
- Second Milo
- Secor Gardens
- Sedge Island
- Sedge Island
- Sedge Island
- Seeley Creek