| Valley to Cocentaina | 4,592.75 mi (7,391.31 km) |
| Valley to Coin | 4,434.02 mi (7,135.86 km) |
| Valley to Colindres | 4,325.77 mi (6,961.65 km) |
| Valley to Collado-Villalba | 4,367.34 mi (7,028.55 km) |
| Valley to Colmenar Viejo | 4,378.51 mi (7,046.53 km) |
| Valley to Colmenarejo | 4,368.75 mi (7,030.83 km) |
| Valley to Conil de la Frontera | 4,376.39 mi (7,043.13 km) |
| Valley to Consuegra | 4,417.22 mi (7,108.83 km) |
| Valley to Corbera de Llobregat | 4,631.55 mi (7,453.77 km) |
| Valley to Cordoba | 4,400.07 mi (7,081.23 km) |
| Valley to Coria del Rio | 4,351.41 mi (7,002.92 km) |
| Valley to Crevillente | 4,588.58 mi (7,384.60 km) |
| Valley to Cuarte de Huerva | 4,491.79 mi (7,228.84 km) |
| Valley to Cubellas | 4,625.22 mi (7,443.58 km) |
| Valley to Cuellar | 4,333.29 mi (6,973.75 km) |
