| Fort Madison to Dover (New Hampshire) | 1,064.52 mi (1,713.19 km) |
| Fort Madison to Dover (New Jersey) | 877.70 mi (1,412.51 km) |
| Fort Madison to Dover (Ohio) | 517.76 mi (833.25 km) |
| Fort Madison to Downers Grove (Illinois) | 191.32 mi (307.90 km) |
| Fort Madison to Downey (California) | 1,536.06 mi (2,472.04 km) |
| Fort Madison to Dranesville (Virginia) | 749.72 mi (1,206.56 km) |
| Fort Madison to Draper (Utah) | 1,074.21 mi (1,728.77 km) |
| Fort Madison to Drexel Heights (Arizona) | 1,238.31 mi (1,992.87 km) |
| Fort Madison to Drexel Hill (Pennsylvania) | 845.89 mi (1,361.33 km) |
| Fort Madison to Duarte (California) | 1,520.15 mi (2,446.44 km) |
| Fort Madison to Dublin (California) | 1,640.19 mi (2,639.63 km) |
| Fort Madison to Dublin (Georgia) | 727.56 mi (1,170.89 km) |
| Fort Madison to Dublin (Ohio) | 433.24 mi (697.24 km) |
| Fort Madison to Dubuque (Iowa) | 134.06 mi (215.75 km) |
| Fort Madison to Duluth (Georgia) | 604.14 mi (972.27 km) |
