Ohio cities starting with S
- Sabina, OH 6
- Saint Clairsville, OH 9
- Saint Marys, OH 13
- Saint Paris, OH 8
- Salem, OH 39
- Salineville, OH 8
- Sandusky, OH 58
- Sardinia, OH 7
- Sardis, OH 8
- Scio, OH 6
- Seaman, OH 5
- Sebring, OH 11
- Seville, OH 6
- Shadyside, OH 8
- Shaker Heights, OH 11
- Sharonville, OH 7
- Sheffield Lake, OH 5
- Shelby, OH 28
- Sherwood, OH 5
- Shreve, OH 7
- Sidney, OH 38
- Smithfield, OH 6
- Smithville, OH 7
- Solon, OH 14
- Somerset, OH 8
- South Charleston, OH 7
- South Euclid, OH 5
- South Point, OH 14
- Spencerville, OH 12
- Springboro, OH 15
- Springfield, OH 119
- St. Clairsville, OH 13
- Sterling, OH 6
- Steubenville, OH 48
- St. Marys, OH 8
- Stockport, OH 8
- Stow, OH 15
- Streetsboro, OH 12
- Strongsville, OH 16
- Struthers, OH 11
- Stryker, OH 6
- Sugarcreek, OH 13
- Sunbury, OH 12
- Swanton, OH 14
- Sylvania, OH 19