Wisconsin cities starting with S
- Saint Croix Falls, WI 6
- Sauk City, WI 7
- Saukville, WI 5
- Schofield, WI 9
- Seymour, WI 8
- Shawano, WI 23
- Sheboygan, WI 67
- Sheboygan Falls, WI 17
- Shell Lake, WI 6
- Shiocton, WI 5
- Siren, WI 6
- Slinger, WI 8
- Soldiers Grove, WI 6
- South Milwaukee, WI 15
- Sparta, WI 17
- Spencer, WI 6
- Spooner, WI 16
- Spring Green, WI 5
- Spring Valley, WI 9
- Stanley, WI 12
- Stevens Point, WI 39
- Stone Lake, WI 8
- Stoughton, WI 15
- Stratford, WI 9
- Sturgeon Bay, WI 27
- Sturtevant, WI 8
- Suamico, WI 8
- Sullivan, WI 6
- Sun Prairie, WI 25
- Superior, WI 40
- Suring, WI 9
- Sussex, WI 10