- Saint Paul
- Seward
- Sterling
- Saint Michael
- Solomon
- Sunrise
- Salcha
- Sam Charley Island
- Slaterville
- South Fairbanks
- South Van Horn
- Schooner Rock
- Ship Island
- Siwash Island
- Smith Island
- Spike Island
- Squire Island
- Storey Island
- Storey Island
- Shikosi Island
- Sullivan Island
- Sullivan Rock
- Sentinel Island
- Shaman Island
- Shelter Island
- Spuhn Island
- Starr Hill
- Strauss Rock
- Suedla Island
- Salamatof