Towns
| State | City/Town | Town Title |
|---|---|---|
| Missouri | South West City | South West City, MO |
| Missouri | Sparta | Sparta, MO |
| Missouri | Speed | Speed, MO |
| Missouri | Spickard | Spickard, MO |
| Missouri | Spokane | Spokane, MO |
| Missouri | Springfield | Springfield, MO |
| Missouri | Squires | Squires, MO |
| Missouri | St Louis | St Louis, MO |
| Missouri | St. Charles | St. Charles, MO |
| Missouri | Stanberry | Stanberry, MO |
| Missouri | Stanton | Stanton, MO |
| Missouri | Stark City | Stark City, MO |
| Missouri | Steedman | Steedman, MO |
| Missouri | Steele | Steele, MO |
| Missouri | Steelville | Steelville, MO |
| Missouri | Stella | Stella, MO |
| Missouri | Stet | Stet, MO |
| Missouri | Stewartsville | Stewartsville, MO |
| Missouri | Stockton | Stockton, MO |
| Missouri | Stotts City | Stotts City, MO |
| Missouri | Stoutland | Stoutland, MO |
| Missouri | Stoutsville | Stoutsville, MO |
| Missouri | Stover | Stover, MO |
| Missouri | Strafford | Strafford, MO |
| Missouri | Strasburg | Strasburg, MO |