| Duluth to Cloverleaf (Texas) | 1,184.95 mi (1,906.99 km) |
| Duluth to Cloverly (Maryland) | 928.68 mi (1,494.57 km) |
| Duluth to Clovis (California) | 1,565.39 mi (2,519.25 km) |
| Duluth to Clovis (New Mexico) | 1,028.71 mi (1,655.55 km) |
| Duluth to Clute (Texas) | 1,238.91 mi (1,993.84 km) |
| Duluth to Coachella (California) | 1,545.52 mi (2,487.27 km) |
| Duluth to Coalinga (California) | 1,621.81 mi (2,610.05 km) |
| Duluth to Coamo (Puerto Rico) | 2,464.64 mi (3,966.46 km) |
| Duluth to Coatesville (Pennsylvania) | 941.65 mi (1,515.44 km) |
| Duluth to Cockeysville (Maryland) | 927.90 mi (1,493.31 km) |
| Duluth to Cocoa (Florida) | 1,411.77 mi (2,272.02 km) |
| Duluth to Cocoa Beach (Florida) | 1,418.21 mi (2,282.40 km) |
| Duluth to Coconut Creek (Florida) | 1,559.74 mi (2,510.16 km) |
| Duluth to Coeur d'Alene (Idaho) | 1,153.41 mi (1,856.23 km) |
| Duluth to Cohoes (New York) | 942.84 mi (1,517.35 km) |
