Barrios de Wisconsin S
- Sak's Woods (9)
- Schmitt Park (2)
- Seymour Park (1)
- Sheboygan Falls/Kohler (9)
- Sheridan Park (2)
- Sherman (7)
- Sherman Park (10)
- Sherman Terrace (5)
- Shorecrest (1)
- Shorewood/Whitefish Bay (4)
- Silver City (4)
- Silver Spring (9)
- Smith's Crossing (7)
- South Appleton (8)
- South Lake (3)
- South Madison (8)
- South Pier (3)
- Southpoint (1)
- Springs (4)
- St Croix Far Eastern Suburbs (28)
- St Joseph's (6)
- St Peter's (2)
- Starlite (6)
- Stocker (2)
- Story Hill (2)
- Sturtevant (9)
- Sturtevant Village (2)
- Suburban Fond du Lac (10)
- Sunset Heights (2)
- Sunset Heights-Waukesha (3)
- Sunset Hills (1)
- Sunset Village (21)
- Swan Creek (1)
- Swift (4)