| Somerset to Coudekerque-Branche | 3,604.05 mi (5,800.16 km) |
| Somerset to Coueron | 3,522.22 mi (5,668.47 km) |
| Somerset to Coulommiers | 3,688.26 mi (5,935.68 km) |
| Somerset to Courbevoic | 3,651.13 mi (5,875.93 km) |
| Somerset to Courcouronnes | 3,665.65 mi (5,899.29 km) |
| Somerset to Cournon-d'Auvergne | 3,777.40 mi (6,079.14 km) |
| Somerset to Courrieres | 3,640.63 mi (5,859.02 km) |
| Somerset to Coutras | 3,649.31 mi (5,873.00 km) |
| Somerset to Couzeix | 3,687.40 mi (5,934.29 km) |
| Somerset to Cran-Gevrier | 3,899.39 mi (6,275.45 km) |
| Somerset to Craponne | 3,844.10 mi (6,186.48 km) |
| Somerset to Creil | 3,651.59 mi (5,876.67 km) |
| Somerset to Crepy-en-Valois | 3,669.14 mi (5,904.90 km) |
| Somerset to Crest | 3,887.57 mi (6,256.43 km) |
| Somerset to Creteil | 3,662.73 mi (5,894.59 km) |
