| Marion to Cocentaina | 4,556.52 mi (7,333.00 km) |
| Marion to Coin | 4,446.41 mi (7,155.80 km) |
| Marion to Colindres | 4,246.93 mi (6,834.78 km) |
| Marion to Collado-Villalba | 4,326.32 mi (6,962.54 km) |
| Marion to Colmenar Viejo | 4,335.96 mi (6,978.06 km) |
| Marion to Colmenarejo | 4,328.70 mi (6,966.36 km) |
| Marion to Conil de la Frontera | 4,401.00 mi (7,082.72 km) |
| Marion to Consuegra | 4,388.87 mi (7,063.21 km) |
| Marion to Corbera de Llobregat | 4,550.86 mi (7,323.90 km) |
| Marion to Cordoba | 4,397.51 mi (7,077.11 km) |
| Marion to Coria del Rio | 4,363.12 mi (7,021.77 km) |
| Marion to Crevillente | 4,560.30 mi (7,339.09 km) |
| Marion to Cuarte de Huerva | 4,423.53 mi (7,118.99 km) |
| Marion to Cubellas | 4,548.32 mi (7,319.82 km) |
| Marion to Cuellar | 4,284.03 mi (6,894.48 km) |
