| Boulder City to Coudekerque-Branche | 5,335.36 mi (8,586.43 km) |
| Boulder City to Coueron | 5,369.52 mi (8,641.40 km) |
| Boulder City to Coulommiers | 5,461.68 mi (8,789.72 km) |
| Boulder City to Courbevoic | 5,430.16 mi (8,739.00 km) |
| Boulder City to Courcouronnes | 5,448.90 mi (8,769.15 km) |
| Boulder City to Cournon-d'Auvergne | 5,611.55 mi (9,030.92 km) |
| Boulder City to Courrieres | 5,379.77 mi (8,657.90 km) |
| Boulder City to Coutras | 5,525.67 mi (8,892.71 km) |
| Boulder City to Couzeix | 5,536.28 mi (8,909.78 km) |
| Boulder City to Cran-Gevrier | 5,703.38 mi (9,178.71 km) |
| Boulder City to Craponne | 5,664.20 mi (9,115.64 km) |
| Boulder City to Creil | 5,420.93 mi (8,724.15 km) |
| Boulder City to Crepy-en-Valois | 5,435.42 mi (8,747.46 km) |
| Boulder City to Crest | 5,724.02 mi (9,211.92 km) |
| Boulder City to Creteil | 5,442.17 mi (8,758.32 km) |
