- Shennington
- Shepley
- Sheppard
- Sheridan
- Sherry
- Sherry Junction
- Sherwood
- Sherwood
- Sherwood Forest
- Sherwood Forest Heights
- Sherwood Glen
- Shiocton
- Shirley
- Shoemaker Point
- Shopiere
- Shorecrest Pointe
- Shorewood
- Shorewood Hills
- Shortville
- Shoto
- Shullsburg
- Sidney
- Silica
- Silver Creek
- Silver Lake
- Sinsinawa
- Sioux
- Siren
- Sister Bay
- Sister Islands