| Alliance to Coudekerque-Branche | 3,851.77 mi (6,198.82 km) |
| Alliance to Coueron | 3,792.82 mi (6,103.95 km) |
| Alliance to Coulommiers | 3,945.45 mi (6,349.58 km) |
| Alliance to Courbevoic | 3,909.06 mi (6,291.02 km) |
| Alliance to Courcouronnes | 3,924.58 mi (6,316.01 km) |
| Alliance to Cournon-d'Auvergne | 4,047.68 mi (6,514.11 km) |
| Alliance to Courrieres | 3,890.36 mi (6,260.94 km) |
| Alliance to Coutras | 3,927.02 mi (6,319.93 km) |
| Alliance to Couzeix | 3,959.84 mi (6,372.75 km) |
| Alliance to Cran-Gevrier | 4,164.78 mi (6,702.57 km) |
| Alliance to Craponne | 4,112.18 mi (6,617.91 km) |
| Alliance to Creil | 3,907.56 mi (6,288.61 km) |
| Alliance to Crepy-en-Valois | 3,924.68 mi (6,316.16 km) |
| Alliance to Crest | 4,159.28 mi (6,693.71 km) |
| Alliance to Creteil | 3,920.86 mi (6,310.02 km) |
