| Delaware to Cordele (Georgia) | 576.77 mi (928.21 km) |
| Delaware to Corinth (Mississippi) | 473.77 mi (762.46 km) |
| Delaware to Corinth (Texas) | 917.12 mi (1,475.96 km) |
| Delaware to Cornelius (North Carolina) | 353.34 mi (568.65 km) |
| Delaware to Cornelius (Oregon) | 2,033.71 mi (3,272.94 km) |
| Delaware to Corning (New York) | 338.10 mi (544.12 km) |
| Delaware to Corona (California) | 1,939.45 mi (3,121.25 km) |
| Delaware to Coronado (California) | 1,952.33 mi (3,141.97 km) |
| Delaware to Corpus Christi (Texas) | 1,190.25 mi (1,915.53 km) |
| Delaware to Corsicana (Texas) | 935.75 mi (1,505.94 km) |
| Delaware to Cortland (New York) | 391.18 mi (629.55 km) |
| Delaware to Corvallis (Oregon) | 2,050.57 mi (3,300.08 km) |
| Delaware to Coshocton (Ohio) | 64.65 mi (104.05 km) |
| Delaware to Costa Mesa (California) | 1,963.19 mi (3,159.45 km) |
| Delaware to Coto de Caza (California) | 1,947.91 mi (3,134.86 km) |
