| Barstow to Carmona | 5,782.14 mi (9,305.46 km) |
| Barstow to Cartagena | 5,968.19 mi (9,604.88 km) |
| Barstow to Cartama | 5,858.03 mi (9,427.59 km) |
| Barstow to Cartaya | 5,725.80 mi (9,214.79 km) |
| Barstow to Caspe | 5,835.64 mi (9,391.55 km) |
| Barstow to Cassa de la Selva | 5,913.19 mi (9,516.37 km) |
| Barstow to Castalla | 5,934.18 mi (9,550.14 km) |
| Barstow to Castellbisbal | 5,900.10 mi (9,495.29 km) |
| Barstow to Castelldefels | 5,909.33 mi (9,510.15 km) |
| Barstow to Castello de Ampurias | 5,902.64 mi (9,499.38 km) |
| Barstow to Castellon de la Plana | 5,894.32 mi (9,485.99 km) |
| Barstow to Castilleja de la Cuesta | 5,768.22 mi (9,283.06 km) |
| Barstow to Catarroja | 5,907.03 mi (9,506.44 km) |
| Barstow to Catral | 5,949.23 mi (9,574.37 km) |
| Barstow to Caudete | 5,916.52 mi (9,521.72 km) |
