| Johnstown to Coudekerque-Branche | 3,790.64 mi (6,100.44 km) |
| Johnstown to Coueron | 3,721.67 mi (5,989.45 km) |
| Johnstown to Coulommiers | 3,880.30 mi (6,244.74 km) |
| Johnstown to Courbevoic | 3,843.57 mi (6,185.63 km) |
| Johnstown to Courcouronnes | 3,858.66 mi (6,209.92 km) |
| Johnstown to Cournon-d'Auvergne | 3,976.81 mi (6,400.06 km) |
| Johnstown to Courrieres | 3,828.40 mi (6,161.21 km) |
| Johnstown to Coutras | 3,852.74 mi (6,200.38 km) |
| Johnstown to Couzeix | 3,887.96 mi (6,257.06 km) |
| Johnstown to Cran-Gevrier | 4,096.16 mi (6,592.13 km) |
| Johnstown to Craponne | 4,042.33 mi (6,505.51 km) |
| Johnstown to Creil | 3,842.92 mi (6,184.59 km) |
| Johnstown to Crepy-en-Valois | 3,860.23 mi (6,212.45 km) |
| Johnstown to Crest | 4,087.83 mi (6,578.73 km) |
| Johnstown to Creteil | 3,855.29 mi (6,204.49 km) |
