| Norristown to Coudekerque-Branche | 3,655.12 mi (5,882.35 km) |
| Norristown to Coueron | 3,573.78 mi (5,751.44 km) |
| Norristown to Coulommiers | 3,739.59 mi (6,018.29 km) |
| Norristown to Courbevoic | 3,702.48 mi (5,958.57 km) |
| Norristown to Courcouronnes | 3,717.02 mi (5,981.97 km) |
| Norristown to Cournon-d'Auvergne | 3,828.96 mi (6,162.11 km) |
| Norristown to Courrieres | 3,691.76 mi (5,941.32 km) |
| Norristown to Coutras | 3,700.92 mi (5,956.06 km) |
| Norristown to Couzeix | 3,738.98 mi (6,017.30 km) |
| Norristown to Cran-Gevrier | 3,950.89 mi (6,358.34 km) |
| Norristown to Craponne | 3,895.64 mi (6,269.42 km) |
| Norristown to Creil | 3,702.90 mi (5,959.24 km) |
| Norristown to Crepy-en-Valois | 3,720.43 mi (5,987.45 km) |
| Norristown to Crest | 3,939.14 mi (6,339.44 km) |
| Norristown to Creteil | 3,714.08 mi (5,977.24 km) |
