| Fort Madison to Dixon (California) | 1,622.70 mi (2,611.48 km) |
| Fort Madison to Dixon (Illinois) | 128.83 mi (207.34 km) |
| Fort Madison to Dobbs Ferry (New York) | 912.97 mi (1,469.28 km) |
| Fort Madison to Doctor Phillips (Florida) | 1,009.58 mi (1,624.75 km) |
| Fort Madison to Dodge City (Kansas) | 504.15 mi (811.34 km) |
| Fort Madison to Dolton (Illinois) | 207.35 mi (333.69 km) |
| Fort Madison to Donna (Texas) | 1,071.38 mi (1,724.21 km) |
| Fort Madison to Dorado (Puerto Rico) | 2,133.20 mi (3,433.05 km) |
| Fort Madison to Doral (Florida) | 1,201.99 mi (1,934.42 km) |
| Fort Madison to Doraville (Georgia) | 605.12 mi (973.85 km) |
| Fort Madison to Dothan (Alabama) | 728.41 mi (1,172.27 km) |
| Fort Madison to Douglas (Arizona) | 1,197.69 mi (1,927.50 km) |
| Fort Madison to Douglas (Georgia) | 787.64 mi (1,267.59 km) |
| Fort Madison to Douglasville (Georgia) | 599.55 mi (964.88 km) |
| Fort Madison to Dover (Delaware) | 844.11 mi (1,358.46 km) |
