| Leek to Cocentaina | 995.23 mi (1,601.67 km) |
| Leek to Coin | 1,143.58 mi (1,840.42 km) |
| Leek to Colindres | 674.14 mi (1,084.93 km) |
| Leek to Collado-Villalba | 866.91 mi (1,395.16 km) |
| Leek to Colmenar Viejo | 864.01 mi (1,390.49 km) |
| Leek to Colmenarejo | 871.94 mi (1,403.26 km) |
| Leek to Conil de la Frontera | 1,180.10 mi (1,899.19 km) |
| Leek to Consuegra | 945.82 mi (1,522.15 km) |
| Leek to Corbera de Llobregat | 828.46 mi (1,333.27 km) |
| Leek to Cordoba | 1,060.07 mi (1,706.02 km) |
| Leek to Coria del Rio | 1,110.37 mi (1,786.96 km) |
| Leek to Crevillente | 1,028.32 mi (1,654.92 km) |
| Leek to Cuarte de Huerva | 797.94 mi (1,284.16 km) |
| Leek to Cubellas | 839.93 mi (1,351.73 km) |
| Leek to Cuellar | 815.87 mi (1,313.02 km) |
