| Fort Madison to Storm Lake (Iowa) | 242.77 mi (390.69 km) |
| Fort Madison to Storrs (Connecticut) | 994.03 mi (1,599.74 km) |
| Fort Madison to Stoughton (Wisconsin) | 193.24 mi (310.99 km) |
| Fort Madison to Stow (Ohio) | 519.03 mi (835.30 km) |
| Fort Madison to Streamwood (Illinois) | 190.95 mi (307.30 km) |
| Fort Madison to Streator (Illinois) | 136.24 mi (219.26 km) |
| Fort Madison to Streetsboro (Ohio) | 523.74 mi (842.87 km) |
| Fort Madison to Strongsville (Ohio) | 498.70 mi (802.57 km) |
| Fort Madison to Stuart (Florida) | 1,123.03 mi (1,807.35 km) |
| Fort Madison to Stuarts Draft (Virginia) | 681.74 mi (1,097.15 km) |
| Fort Madison to Sturgis (Michigan) | 318.86 mi (513.15 km) |
| Fort Madison to Suamico (Wisconsin) | 323.65 mi (520.86 km) |
| Fort Madison to Sudley (Virginia) | 746.47 mi (1,201.33 km) |
| Fort Madison to Suffern (New York) | 898.34 mi (1,445.74 km) |
| Fort Madison to Suffolk (Virginia) | 837.55 mi (1,347.90 km) |
