| Rancho Santa Margarita to Coudekerque-Branche | 5,546.92 mi (8,926.90 km) |
| Rancho Santa Margarita to Coueron | 5,583.61 mi (8,985.96 km) |
| Rancho Santa Margarita to Coulommiers | 5,674.10 mi (9,131.58 km) |
| Rancho Santa Margarita to Courbevoic | 5,642.77 mi (9,081.16 km) |
| Rancho Santa Margarita to Courcouronnes | 5,661.58 mi (9,111.43 km) |
| Rancho Santa Margarita to Cournon-d'Auvergne | 5,825.14 mi (9,374.66 km) |
| Rancho Santa Margarita to Courrieres | 5,591.45 mi (8,998.57 km) |
| Rancho Santa Margarita to Coutras | 5,740.10 mi (9,237.79 km) |
| Rancho Santa Margarita to Couzeix | 5,750.24 mi (9,254.12 km) |
| Rancho Santa Margarita to Cran-Gevrier | 5,916.18 mi (9,521.17 km) |
| Rancho Santa Margarita to Craponne | 5,877.42 mi (9,458.79 km) |
| Rancho Santa Margarita to Creil | 5,633.32 mi (9,065.95 km) |
| Rancho Santa Margarita to Crepy-en-Valois | 5,647.70 mi (9,089.10 km) |
| Rancho Santa Margarita to Crest | 5,937.53 mi (9,555.53 km) |
| Rancho Santa Margarita to Creteil | 5,654.77 mi (9,100.47 km) |
