- Sioux Narrows
- Summer Beaver
- Seckerton
- Shetland
- Sutorville
- Sykeston
- Scotch Corners
- Scotch Line
- Sinclair Shore
- Stanleyville
- Slate Falls
- Stella
- Storms Corners
- Strathcona
- Switzerville
- Scotch Block
- Snowville
- Squirrel Town
- Sable
- Salmonville
- Sharon
- Southgate
- Springbank
- Springfield
- St. Ives
- Strathburn
- Strathroy
- Sylvan
- Smith's Landing
- Salem