Pennsylvanie
Îles commençant par s
États-Unis
- Sambo Island
- Sassafras Island
- Schellenbergers Island
- Scovell Island
- Searchs Island
- Second Island
- Shad Island
- Shapanack Island
- Shaw Island
- Shawnee Island
- Sheesly Island
- Sheets Island
- Shelley Island
- Sicily
- Siggias Island
- Sixmile Island
- Smith Island
- Smith Island (historical)
- Spades Wharf Island
- Starveout Island (historical)
- Stewards Island
- Stocker Island
- Stucker Island
- Sweigarts Island
- Sycamore Island