- Saint Anthony
- Saint Bernice
- Saint Croix
- Saint Joe
- Saint John
- Saint Mary Of The Woods
- Saint Meinrad
- Saint Paul
- Salem
- San Pierre
- Sandborn
- Santa Claus
- Saratoga
- Schererville
- Schneider
- Scipio
- Scotland
- Scottsburg
- Sedalia
- Seelyville
- Sellersburg
- Selma
- Servia
- Seymour
- Sharpsville
- Shelburn
- Shelby
- Shelbyville
- Shepardsville
- Sheridan
- Shipshewana
- Shirley
- Shoals
- Silver Lake
- Smithville
- Solsberry
- Somerset
- Somerville
- South Bend
- South Milford
- South Whitley
- Southport
- Speedway
- Spencer
- Spencerville
- Spiceland
- Springport
- Springville
- Spurgeon
- St Anthony
- St John
- St Leon
- St Meinrad
- St. Anthony
- St. Croix
- St. John
- St. Paul
- Stanford
- Star City
- State Line
- Staunton
- Stendal
- Stilesville
- Stinesville
- Stockwell
- Straughn
- Stroh
- Sullivan
- Sulphur Springs
- Sumava Resorts
- Summitville
- Sunman
- Swayzee
- Sweetser
- Switz City
- Syracuse