| Rio Grande City to Cividale del Friuli | 5,881.88 mi (9,465.96 km) |
| Rio Grande City to Civita Castellana | 5,984.49 mi (9,631.11 km) |
| Rio Grande City to Civitanova Marche | 6,001.93 mi (9,659.17 km) |
| Rio Grande City to Civitavecchia | 5,965.70 mi (9,600.87 km) |
| Rio Grande City to Civitella in Val di Chiana | 5,912.90 mi (9,515.89 km) |
| Rio Grande City to Clusone | 5,748.90 mi (9,251.97 km) |
| Rio Grande City to Coccaglio | 5,761.57 mi (9,272.36 km) |
| Rio Grande City to Codigoro | 5,876.56 mi (9,457.41 km) |
| Rio Grande City to Codogno | 5,764.72 mi (9,277.42 km) |
| Rio Grande City to Codroipo | 5,868.97 mi (9,445.19 km) |
| Rio Grande City to Cogoleto | 5,747.52 mi (9,249.75 km) |
| Rio Grande City to Colle di Val d'Elsa | 5,888.82 mi (9,477.15 km) |
| Rio Grande City to Colle Salvetti | 5,853.89 mi (9,420.92 km) |
| Rio Grande City to Collecchio | 5,800.84 mi (9,335.55 km) |
| Rio Grande City to Colleferro | 6,031.91 mi (9,707.42 km) |
