- Sandy Hill
- Scott Corners
- Shea Corner
- Sixteen Acres
- Skyland
- Smith Highlands
- Smiths Ferry
- South End
- South Factory Village
- South Quarter
- Springdale
- Springfield Hill
- State Line
- Suffield Corner
- Sunset Rock
- South Natick
- Saxonville
- Shaker Glen
- Shaker Village
- Shakerhill
- Shirley Center
- Silver Hill
- South Billerica
- South Lincoln
- South Lowell
- South Pepperell
- South Row
- South Sherborn
- South Sudbury
- South Village