| Rapid City to Cividale del Friuli | 5,104.42 mi (8,214.76 km) |
| Rapid City to Civita Castellana | 5,266.26 mi (8,475.22 km) |
| Rapid City to Civitanova Marche | 5,258.86 mi (8,463.31 km) |
| Rapid City to Civitavecchia | 5,255.44 mi (8,457.82 km) |
| Rapid City to Civitella in Val di Chiana | 5,185.27 mi (8,344.89 km) |
| Rapid City to Clusone | 5,001.54 mi (8,049.20 km) |
| Rapid City to Coccaglio | 5,018.44 mi (8,076.39 km) |
| Rapid City to Codigoro | 5,126.40 mi (8,250.15 km) |
| Rapid City to Codogno | 5,029.36 mi (8,093.97 km) |
| Rapid City to Codroipo | 5,096.88 mi (8,202.63 km) |
| Rapid City to Cogoleto | 5,031.51 mi (8,097.43 km) |
| Rapid City to Colle di Val d'Elsa | 5,166.32 mi (8,314.39 km) |
| Rapid City to Colle Salvetti | 5,134.02 mi (8,262.40 km) |
| Rapid City to Collecchio | 5,067.12 mi (8,154.75 km) |
| Rapid City to Colleferro | 5,316.01 mi (8,555.29 km) |
