- Slate Lick
- Slate Valley
- Slater
- Slatey
- Slaughters
- Slavans
- Slemp
- Slick Rock
- Slickford
- Slickway
- Sligo
- Slim Island
- Slim Island
- Sloan
- Sloans Crossing
- Sloans Valley
- Smallhous
- Smilax
- Smile
- Smith
- Smith Ford
- Smith Island
- Smith Mills
- Smith Town
- Smithfield
- Smithland
- Smiths Creek
- Smiths Grove
- Smithview
- Smithville