- South Thompson
- Spring Valley
- Silver Springs
- Spring Valley Estates
- Stringtown
- Seneca Lake Estates
- Spencer Station
- Spring Valley
- Saint Jacobs
- Saint Lawrence Corners
- Saint Peter
- Salem Heights
- Sayler Park
- Sedamsville
- Sekitan
- Sherwood Village
- Skyline Acres
- South Clippinger
- South Fairmount
- Spring Meadows
- Stanbery Park
- Storrs
- Stratford Manor
- Strauch Island
- Summit
- Sunaire
- Sycamore
- Symmes
- Shawtown
- South Findlay