Illinois Neighborhoods S
- Sauganash (2)
- Saukie (2)
- Schorsch Village (4)
- Scots Plains (1)
- Scottsdale (2)
- Sherman Street (1)
- Signal Hill (3)
- Smith Park (25)
- South Chicago (49)
- South Deering (6)
- South East Villages (5)
- South End (2)
- South Farnsworth (9)
- South Loop (289)
- South Shore (145)
- South Side (4)
- Southeast Aurora (8)
- Southeast Elgin-Cook (3)
- Southeast Elgin-Kane (2)
- Southwest Elgin (2)
- Southwest Rock Island (2)
- Southwest Rockford (5)
- Spring Brook Crossing (1)
- Spring Brook Golf Course (1)
- St Pat's (4)
- Still Water (5)
- Streeterville (259)