- Sainte-Cécile
- Sainte-Louise
- Sainte-Marie-Saint-Raphaël
- Sainte Rose
- Sainte Rosette
- Salisbury
- Salmon Beach
- Salmonhurst Corner
- Sandy Island
- Savoy Landing
- Sea Side
- Seal Cove
- Selwood
- Sevogle
- Shannonvale
- Shediac
- Shediac Bridge-Shediac River
- Sheep Island
- Shippagan
- Siegas
- Siegas Lake Settlement
- Simms Corner
- Simpsons Field
- Simpsons Island
- Sirois
- Sisson
- Sisson Lake Reservoir
- Sisson Ridge
- Six-Milles
- Six Roads