| Duluth to Cold Springs (Nevada) | 1,475.07 mi (2,373.89 km) |
| Duluth to Coldwater (Michigan) | 485.16 mi (780.78 km) |
| Duluth to Colesville (Maryland) | 930.10 mi (1,496.85 km) |
| Duluth to College (Alaska) | 2,386.86 mi (3,841.28 km) |
| Duluth to College Park (Georgia) | 992.89 mi (1,597.91 km) |
| Duluth to College Park (Maryland) | 936.28 mi (1,506.80 km) |
| Duluth to College Station (Texas) | 1,140.46 mi (1,835.39 km) |
| Duluth to Collegedale (Tennessee) | 889.66 mi (1,431.77 km) |
| Duluth to Colleyville (Texas) | 994.90 mi (1,601.14 km) |
| Duluth to Collierville (Tennessee) | 820.21 mi (1,320.01 km) |
| Duluth to Collinsville (Illinois) | 569.87 mi (917.12 km) |
| Duluth to Colonia (New Jersey) | 984.76 mi (1,584.81 km) |
| Duluth to Colonial Heights (Virginia) | 999.25 mi (1,608.13 km) |
| Duluth to Colonial Park (Pennsylvania) | 886.58 mi (1,426.82 km) |
| Duluth to Colorado Springs (Colorado) | 839.39 mi (1,350.87 km) |
