| Rio Grande City to Cehegin | 5,470.00 mi (8,803.12 km) |
| Rio Grande City to Cervello | 5,549.67 mi (8,931.33 km) |
| Rio Grande City to Cervera | 5,509.52 mi (8,866.72 km) |
| Rio Grande City to Ceuti | 5,496.30 mi (8,845.44 km) |
| Rio Grande City to Cheste | 5,483.24 mi (8,824.43 km) |
| Rio Grande City to Chiclana de la Frontera | 5,298.93 mi (8,527.80 km) |
| Rio Grande City to Chipiona | 5,275.91 mi (8,490.75 km) |
| Rio Grande City to Chiva | 5,481.79 mi (8,822.09 km) |
| Rio Grande City to Churriana de la Vega | 5,405.21 mi (8,698.85 km) |
| Rio Grande City to Ciempozuelos | 5,322.15 mi (8,565.18 km) |
| Rio Grande City to Cieza | 5,484.35 mi (8,826.22 km) |
| Rio Grande City to Cisterniga | 5,231.29 mi (8,418.95 km) |
| Rio Grande City to Ciudad de Melilla | 5,494.63 mi (8,842.76 km) |
| Rio Grande City to Ciudad Real | 5,340.34 mi (8,594.44 km) |
| Rio Grande City to Ciudad-Rodrigo | 5,168.73 mi (8,318.27 km) |
