| Delaware to Cullman (Alabama) | 470.00 mi (756.39 km) |
| Delaware to Culpeper (Virginia) | 298.53 mi (480.44 km) |
| Delaware to Culver City (California) | 1,979.35 mi (3,185.46 km) |
| Delaware to Cumberland (Maryland) | 232.66 mi (374.43 km) |
| Delaware to Cupertino (California) | 2,091.61 mi (3,366.11 km) |
| Delaware to Cutler Bay (Florida) | 1,028.45 mi (1,655.12 km) |
| Delaware to Cutlerville (Michigan) | 221.84 mi (357.02 km) |
| Delaware to Cuyahoga Falls (Ohio) | 101.51 mi (163.36 km) |
| Delaware to Cypress (California) | 1,965.63 mi (3,163.37 km) |
| Delaware to Cypress Gardens (Florida) | 852.24 mi (1,371.55 km) |
| Delaware to Cypress Lake (Florida) | 952.13 mi (1,532.31 km) |
| Delaware to D'Iberville (Mississippi) | 752.91 mi (1,211.70 km) |
| Delaware to Dakota Ridge (Colorado) | 1,166.32 mi (1,877.02 km) |
| Delaware to Dale City (Virginia) | 325.75 mi (524.24 km) |
| Delaware to Dallas (Georgia) | 450.74 mi (725.39 km) |
