| Hillsboro to Coudekerque-Branche | 5,012.38 mi (8,066.65 km) |
| Hillsboro to Coueron | 5,106.84 mi (8,218.66 km) |
| Hillsboro to Coulommiers | 5,153.53 mi (8,293.81 km) |
| Hillsboro to Courbevoic | 5,126.62 mi (8,250.50 km) |
| Hillsboro to Courcouronnes | 5,146.62 mi (8,282.68 km) |
| Hillsboro to Cournon-d'Auvergne | 5,329.02 mi (8,576.23 km) |
| Hillsboro to Courrieres | 5,058.32 mi (8,140.59 km) |
| Hillsboro to Coutras | 5,272.26 mi (8,484.89 km) |
| Hillsboro to Couzeix | 5,266.02 mi (8,474.83 km) |
| Hillsboro to Cran-Gevrier | 5,399.38 mi (8,689.46 km) |
| Hillsboro to Craponne | 5,371.08 mi (8,643.92 km) |
| Hillsboro to Creil | 5,112.79 mi (8,228.24 km) |
| Hillsboro to Crepy-en-Valois | 5,124.91 mi (8,247.75 km) |
| Hillsboro to Crest | 5,437.26 mi (8,750.43 km) |
| Hillsboro to Creteil | 5,138.22 mi (8,269.16 km) |
