- Shep's Subdivision
- St. Agatha
- St. Jacobs
- Sandy Beach
- Schutt
- Scotch Bush
- Shady Nook
- Shields Crossing
- Siberia
- Silver Lake
- Slabtown
- Springtown
- Spruce Hedge
- Stewartville
- Stonecliffe
- Sarnia
- Saugeen Shores
- Sault Ste. Marie
- Sandy Beach
- Saurin
- Schepeler
- Schomberg Heights
- Severn Bridge
- Severn Falls
- Simcoe Lodge
- Smithdale
- Southview Beach
- Southview Cove
- Stayner
- Strongville