Barrios de Wisconsin S
- Sak's Woods (9)
- Schmitt Park (2)
- Seymour Park (1)
- Sheboygan Falls/Kohler (7)
- Sheridan Park (4)
- Sherman (7)
- Sherman Park (6)
- Sherman Terrace (4)
- Shorecrest (1)
- Shorewood/Whitefish Bay (2)
- Silver City (1)
- Silver Spring (8)
- Silverswan (3)
- Smith's Crossing (5)
- South Appleton (8)
- South Calumet (4)
- South Madison (9)
- South Pier (4)
- Southpoint (2)
- Springs (3)
- St Aemilian's (1)
- St Croix Far Eastern Suburbs (27)
- St Joe's (1)
- St Joseph's (3)
- St Peter's (3)
- Starlite (7)
- Stocker (2)
- Story Hill (1)
- Sturtevant (8)
- Sturtevant Village (2)
- Suburban Fond du Lac (7)
- Sunnyside (1)
- Sunnyside South (1)
- Sunset Heights-Waukesha (2)
- Sunset Hills (2)
- Sunset Village (7)
- Swift (1)