- Sand Island
- Sand Island
- Sand Lake
- Sand Prairie
- Sandstone Bluff
- Sandusky
- Sandy Hook
- Sarona
- Saturday Islands
- Sauk City
- Sauk Trail Beach
- Saukville
- Saunders
- Sauntry
- Saxeville
- Saxon
- Saylesville
- Saylesville
- Sayner
- Scandinavia
- Schey Acres
- Schmidt Corner
- Schmidt Island
- Schnappsville
- Schneyville
- Schofield
- School Hill
- Schultz
- Scott Island
- Scotts Junction