| Fort Madison to Salisbury (New York) | 930.58 mi (1,497.62 km) |
| Fort Madison to Salisbury (North Carolina) | 681.52 mi (1,096.79 km) |
| Fort Madison to Salmon Creek (Washington) | 1,605.75 mi (2,584.21 km) |
| Fort Madison to Salt Lake City (Utah) | 1,075.62 mi (1,731.04 km) |
| Fort Madison to Sammamish (Washington) | 1,585.13 mi (2,551.02 km) |
| Fort Madison to San Angelo (Texas) | 811.82 mi (1,306.49 km) |
| Fort Madison to San Anselmo (California) | 1,670.27 mi (2,688.04 km) |
| Fort Madison to San Antonio (Texas) | 870.39 mi (1,400.76 km) |
| Fort Madison to San Benito (Texas) | 1,064.25 mi (1,712.75 km) |
| Fort Madison to San Bernardino (California) | 1,486.72 mi (2,392.64 km) |
| Fort Madison to San Bruno (California) | 1,670.01 mi (2,687.62 km) |
| Fort Madison to San Buenaventura (California) | 1,583.46 mi (2,548.33 km) |
| Fort Madison to San Carlos (California) | 1,664.01 mi (2,677.97 km) |
| Fort Madison to San Carlos Park (Florida) | 1,119.17 mi (1,801.12 km) |
| Fort Madison to San Clemente (California) | 1,523.88 mi (2,452.45 km) |
