| San Mateo to Cocentaina | 6,000.72 mi (9,657.23 km) |
| San Mateo to Coin | 5,942.20 mi (9,563.05 km) |
| San Mateo to Colindres | 5,659.69 mi (9,108.40 km) |
| San Mateo to Collado-Villalba | 5,775.54 mi (9,294.83 km) |
| San Mateo to Colmenar Viejo | 5,783.19 mi (9,307.15 km) |
| San Mateo to Colmenarejo | 5,778.79 mi (9,300.06 km) |
| San Mateo to Conil de la Frontera | 5,909.17 mi (9,509.89 km) |
| San Mateo to Consuegra | 5,848.19 mi (9,411.76 km) |
| San Mateo to Corbera de Llobregat | 5,946.44 mi (9,569.87 km) |
| San Mateo to Cordoba | 5,881.38 mi (9,465.17 km) |
| San Mateo to Coria del Rio | 5,861.28 mi (9,432.81 km) |
| San Mateo to Crevillente | 6,012.55 mi (9,676.27 km) |
| San Mateo to Cuarte de Huerva | 5,839.37 mi (9,397.56 km) |
| San Mateo to Cubellas | 5,948.40 mi (9,573.03 km) |
| San Mateo to Cuellar | 5,726.66 mi (9,216.17 km) |
