| Clayton to Carmona | 1,141.87 mi (1,837.66 km) |
| Clayton to Cartagena | 1,118.77 mi (1,800.48 km) |
| Clayton to Cartama | 1,187.16 mi (1,910.55 km) |
| Clayton to Cartaya | 1,168.02 mi (1,879.74 km) |
| Clayton to Caspe | 870.93 mi (1,401.63 km) |
| Clayton to Cassa de la Selva | 849.51 mi (1,367.15 km) |
| Clayton to Castalla | 1,050.59 mi (1,690.76 km) |
| Clayton to Castellbisbal | 868.07 mi (1,397.02 km) |
| Clayton to Castelldefels | 881.39 mi (1,418.46 km) |
| Clayton to Castello de Ampurias | 827.14 mi (1,331.16 km) |
| Clayton to Castellon de la Plana | 957.03 mi (1,540.19 km) |
| Clayton to Castilleja de la Cuesta | 1,150.89 mi (1,852.18 km) |
| Clayton to Catarroja | 995.70 mi (1,602.43 km) |
| Clayton to Catral | 1,080.47 mi (1,738.86 km) |
| Clayton to Caudete | 1,042.49 mi (1,677.72 km) |
