- Sparks
- Spring Valley
- Stafford
- Stamford
- Stanton
- Stonewall
- Stratford
- Sun Valley
- Sunset
- Sweetwater
- Saint Johns Colony
- Seawillow
- Soda Springs
- Schicke Point Community
- Second Chain of Islands
- Sixmile
- South Pass Island
- Steamboat Island
- Saldivar Colonia
- San Pedro Colonia
- San Vicente Estates Colonia
- Santa Elena Colonia
- Santa Rosa Annex Colonia
- Santa Rosa Number 12 Colonia
- Santa Rosa Number 14 Colonia
- Santa Rosa Number 5 Colonia
- Santa Rosa Number 6 Colonia
- Santa Rosa Number 9 Colonia
- Schwartz Colonia
- Shoemaker Acres Colonia