| Fort Madison to Cordele (Georgia) | 731.90 mi (1,177.88 km) |
| Fort Madison to Corinth (Mississippi) | 421.41 mi (678.20 km) |
| Fort Madison to Corinth (Texas) | 605.26 mi (974.07 km) |
| Fort Madison to Cornelius (North Carolina) | 670.89 mi (1,079.69 km) |
| Fort Madison to Cornelius (Oregon) | 1,624.26 mi (2,613.99 km) |
| Fort Madison to Corning (New York) | 747.61 mi (1,203.16 km) |
| Fort Madison to Corona (California) | 1,509.02 mi (2,428.53 km) |
| Fort Madison to Coronado (California) | 1,525.85 mi (2,455.62 km) |
| Fort Madison to Corpus Christi (Texas) | 954.60 mi (1,536.28 km) |
| Fort Madison to Corsicana (Texas) | 654.72 mi (1,053.66 km) |
| Fort Madison to Cortland (New York) | 794.52 mi (1,278.66 km) |
| Fort Madison to Corvallis (Oregon) | 1,635.91 mi (2,632.75 km) |
| Fort Madison to Coshocton (Ohio) | 500.08 mi (804.80 km) |
| Fort Madison to Costa Mesa (California) | 1,532.91 mi (2,466.98 km) |
| Fort Madison to Coto de Caza (California) | 1,518.15 mi (2,443.22 km) |
