| Duluth to Crawfordsville (Indiana) | 534.14 mi (859.62 km) |
| Duluth to Crest Hill (Illinois) | 411.05 mi (661.52 km) |
| Duluth to Crestview (Florida) | 1,146.47 mi (1,845.06 km) |
| Duluth to Crestwood (Illinois) | 415.92 mi (669.35 km) |
| Duluth to Crestwood (Missouri) | 574.82 mi (925.08 km) |
| Duluth to Creve Coeur (Missouri) | 567.13 mi (912.71 km) |
| Duluth to Crofton (Maryland) | 945.94 mi (1,522.35 km) |
| Duluth to Crossville (Tennessee) | 832.89 mi (1,340.41 km) |
| Duluth to Crowley (Louisiana) | 1,144.12 mi (1,841.29 km) |
| Duluth to Crowley (Texas) | 1,018.86 mi (1,639.69 km) |
| Duluth to Crown Point (Indiana) | 440.03 mi (708.16 km) |
| Duluth to Crystal (Minnesota) | 133.65 mi (215.08 km) |
| Duluth to Crystal Lake (Illinois) | 365.46 mi (588.15 km) |
| Duluth to Cudahy (California) | 1,620.08 mi (2,607.26 km) |
| Duluth to Cudahy (Wisconsin) | 337.27 mi (542.78 km) |
