- Shiloh
- Sandy Hill
- Sheahan Estates
- Sheffield Glen
- Shirleys Bay
- Skyline
- South Keys
- South March
- Spring Hill
- St. Claire Gardens
- Stanley Corners
- Stapledon
- Stewart Farm
- Stittsville
- Salford
- Showers Corners
- Springford
- Strathallan
- Sweaburg
- Sans Souci
- Scotia
- Seguin Falls
- Seven Mile Narrows
- Shawanaga Landing
- Shebeshekong
- Skerryvore
- Snug Harbour
- Snug Haven
- South Magnetawan
- Spence