| Box Elder to Cocentaina | 4,957.77 mi (7,978.76 km) |
| Box Elder to Coin | 4,877.79 mi (7,850.04 km) |
| Box Elder to Colindres | 4,628.42 mi (7,448.72 km) |
| Box Elder to Collado-Villalba | 4,729.24 mi (7,610.97 km) |
| Box Elder to Colmenar Viejo | 4,737.77 mi (7,624.71 km) |
| Box Elder to Colmenarejo | 4,732.13 mi (7,615.63 km) |
| Box Elder to Conil de la Frontera | 4,839.91 mi (7,789.08 km) |
| Box Elder to Consuegra | 4,798.04 mi (7,721.70 km) |
| Box Elder to Corbera de Llobregat | 4,924.76 mi (7,925.63 km) |
| Box Elder to Cordoba | 4,821.40 mi (7,759.29 km) |
| Box Elder to Coria del Rio | 4,795.63 mi (7,717.82 km) |
| Box Elder to Crevillente | 4,966.22 mi (7,992.36 km) |
| Box Elder to Cuarte de Huerva | 4,807.88 mi (7,737.54 km) |
| Box Elder to Cubellas | 4,924.69 mi (7,925.52 km) |
| Box Elder to Cuellar | 4,682.88 mi (7,536.36 km) |
