| Duluth to Clemson (South Carolina) | 966.13 mi (1,554.83 km) |
| Duluth to Clermont (Florida) | 1,380.43 mi (2,221.58 km) |
| Duluth to Cleveland (Mississippi) | 903.42 mi (1,453.92 km) |
| Duluth to Cleveland (Ohio) | 634.05 mi (1,020.41 km) |
| Duluth to Cleveland (Tennessee) | 885.30 mi (1,424.76 km) |
| Duluth to Cleveland Heights (Ohio) | 637.28 mi (1,025.61 km) |
| Duluth to Cliffside Park (New Jersey) | 991.23 mi (1,595.23 km) |
| Duluth to Clifton (Colorado) | 979.27 mi (1,575.99 km) |
| Duluth to Clifton (New Jersey) | 982.16 mi (1,580.63 km) |
| Duluth to Clinton (Iowa) | 353.43 mi (568.79 km) |
| Duluth to Clinton (Maryland) | 948.40 mi (1,526.31 km) |
| Duluth to Clinton (Mississippi) | 1,000.96 mi (1,610.89 km) |
| Duluth to Clinton (Utah) | 1,061.17 mi (1,707.79 km) |
| Duluth to Clive (Iowa) | 365.90 mi (588.87 km) |
| Duluth to Cloquet (Minnesota) | 17.12 mi (27.55 km) |
