| Rio Grande City to Cognac | 5,317.63 mi (8,557.90 km) |
| Rio Grande City to Cogolin | 5,695.41 mi (9,165.88 km) |
| Rio Grande City to Colmar | 5,566.68 mi (8,958.71 km) |
| Rio Grande City to Colombes | 5,332.60 mi (8,581.99 km) |
| Rio Grande City to Colomiers | 5,453.13 mi (8,775.97 km) |
| Rio Grande City to Combs-la-Ville | 5,352.83 mi (8,614.55 km) |
| Rio Grande City to Comines | 5,307.89 mi (8,542.22 km) |
| Rio Grande City to Compiegne | 5,341.07 mi (8,595.62 km) |
| Rio Grande City to Concarneau | 5,102.33 mi (8,211.41 km) |
| Rio Grande City to Conde-sur-l'Escaut | 5,340.31 mi (8,594.39 km) |
| Rio Grande City to Conflans-Sainte-Honorine | 5,324.05 mi (8,568.23 km) |
| Rio Grande City to Corbas | 5,544.87 mi (8,923.61 km) |
| Rio Grande City to Corbeil-Essonnes | 5,351.32 mi (8,612.11 km) |
| Rio Grande City to Cormeilles-en-Parisis | 5,329.02 mi (8,576.23 km) |
| Rio Grande City to Cosne sur Loire | 5,406.31 mi (8,700.61 km) |
