| Mastic to Cocentaina | 3,732.67 mi (6,007.16 km) |
| Mastic to Coin | 3,587.44 mi (5,773.42 km) |
| Mastic to Colindres | 3,456.04 mi (5,561.97 km) |
| Mastic to Collado-Villalba | 3,505.26 mi (5,641.17 km) |
| Mastic to Colmenar Viejo | 3,516.12 mi (5,658.64 km) |
| Mastic to Colmenarejo | 3,506.91 mi (5,643.82 km) |
| Mastic to Conil de la Frontera | 3,533.76 mi (5,687.04 km) |
| Mastic to Consuegra | 3,558.46 mi (5,726.79 km) |
| Mastic to Corbera de Llobregat | 3,762.39 mi (6,054.98 km) |
| Mastic to Cordoba | 3,548.54 mi (5,710.82 km) |
| Mastic to Coria del Rio | 3,504.22 mi (5,639.49 km) |
| Mastic to Crevillente | 3,730.52 mi (6,003.69 km) |
| Mastic to Cuarte de Huerva | 3,624.41 mi (5,832.93 km) |
| Mastic to Cubellas | 3,756.69 mi (6,045.80 km) |
| Mastic to Cuellar | 3,469.22 mi (5,583.16 km) |
