- Sloan
- Smeltertown
- Smith Hill
- Smith Place
- Snow Water Springs
- Snowmass
- Snyder
- Somerset
- Sopris
- South Platte
- South Roggen
- Spanish Village
- Spar City
- Spencer Heights
- Sphinx Park
- Spook City
- Spring Hill
- Spring Ranch
- Springdale
- Spruce
- Sprucedale
- Sprucewood
- Sringfield
- Stage
- Stanford
- Stanley Heights Subdivision
- Stanley Park
- Stapleton
- State Bridge
- Steamboat II