| South Valley to Cocentaina | 5,500.33 mi (8,851.93 km) |
| South Valley to Coin | 5,393.92 mi (8,680.67 km) |
| South Valley to Colindres | 5,185.67 mi (8,345.52 km) |
| South Valley to Collado-Villalba | 5,270.20 mi (8,481.56 km) |
| South Valley to Colmenar Viejo | 5,279.64 mi (8,496.76 km) |
| South Valley to Colmenarejo | 5,272.67 mi (8,485.55 km) |
| South Valley to Conil de la Frontera | 5,348.76 mi (8,608.00 km) |
| South Valley to Consuegra | 5,333.92 mi (8,584.11 km) |
| South Valley to Corbera de Llobregat | 5,487.91 mi (8,831.93 km) |
| South Valley to Cordoba | 5,344.45 mi (8,601.06 km) |
| South Valley to Coria del Rio | 5,310.67 mi (8,546.69 km) |
| South Valley to Crevillente | 5,504.97 mi (8,859.40 km) |
| South Valley to Cuarte de Huerva | 5,363.32 mi (8,631.43 km) |
| South Valley to Cubellas | 5,486.09 mi (8,829.02 km) |
| South Valley to Cuellar | 5,227.04 mi (8,412.12 km) |
