| Delaware to Clemson (South Carolina) | 387.28 mi (623.27 km) |
| Delaware to Clermont (Florida) | 815.65 mi (1,312.66 km) |
| Delaware to Cleveland (Mississippi) | 618.03 mi (994.63 km) |
| Delaware to Cleveland (Ohio) | 109.88 mi (176.84 km) |
| Delaware to Cleveland (Tennessee) | 366.00 mi (589.02 km) |
| Delaware to Cleveland Heights (Ohio) | 115.76 mi (186.30 km) |
| Delaware to Cliffside Park (New Jersey) | 478.22 mi (769.62 km) |
| Delaware to Clifton (Colorado) | 1,347.89 mi (2,169.22 km) |
| Delaware to Clifton (New Jersey) | 469.45 mi (755.50 km) |
| Delaware to Clinton (Iowa) | 388.45 mi (625.14 km) |
| Delaware to Clinton (Maryland) | 345.35 mi (555.78 km) |
| Delaware to Clinton (Mississippi) | 680.56 mi (1,095.25 km) |
| Delaware to Clinton (Utah) | 1,512.48 mi (2,434.09 km) |
| Delaware to Clive (Iowa) | 566.73 mi (912.06 km) |
| Delaware to Cloquet (Minnesota) | 647.67 mi (1,042.33 km) |
