Mississippi cities starting with S
- Sallis, MS 5
- Saltillo, MS 18
- Sandersville, MS 8
- Sarah, MS 6
- Sardis, MS 13
- Saucier, MS 8
- Scooba, MS 6
- Seminary, MS 10
- Senatobia, MS 28
- Shannon, MS 7
- Shaw, MS 7
- Shelby, MS 6
- Shubuta, MS 20
- Silver Creek, MS 8
- Smithdale, MS 7
- Smithville, MS 7
- Soso, MS 5
- Southaven, MS 52
- Starkville, MS 59
- State Line, MS 9
- Steens, MS 7
- Stewart, MS 7
- Stonewall, MS 7
- Stringer, MS 7
- Sturgis, MS 9
- Summit, MS 23
- Sumner, MS 5
- Sumrall, MS 12
- Sunflower, MS 5