| Napa to Cocentaina | 5,961.80 mi (9,594.58 km) |
| Napa to Coin | 5,905.67 mi (9,504.26 km) |
| Napa to Colindres | 5,619.88 mi (9,044.32 km) |
| Napa to Collado-Villalba | 5,737.03 mi (9,232.86 km) |
| Napa to Colmenar Viejo | 5,744.60 mi (9,245.04 km) |
| Napa to Colmenarejo | 5,740.31 mi (9,238.14 km) |
| Napa to Conil de la Frontera | 5,873.30 mi (9,452.17 km) |
| Napa to Consuegra | 5,810.05 mi (9,350.37 km) |
| Napa to Corbera de Llobregat | 5,905.73 mi (9,504.35 km) |
| Napa to Cordoba | 5,844.32 mi (9,405.53 km) |
| Napa to Coria del Rio | 5,824.94 mi (9,374.33 km) |
| Napa to Crevillente | 5,973.95 mi (9,614.15 km) |
| Napa to Cuarte de Huerva | 5,799.49 mi (9,333.38 km) |
| Napa to Cubellas | 5,907.85 mi (9,507.76 km) |
| Napa to Cuellar | 5,687.93 mi (9,153.84 km) |
