| South Valley to Cividale del Friuli | 5,708.57 mi (9,187.05 km) |
| South Valley to Civita Castellana | 5,855.59 mi (9,423.66 km) |
| South Valley to Civitanova Marche | 5,854.94 mi (9,422.61 km) |
| South Valley to Civitavecchia | 5,842.47 mi (9,402.54 km) |
| South Valley to Civitella in Val di Chiana | 5,776.66 mi (9,296.64 km) |
| South Valley to Clusone | 5,597.10 mi (9,007.66 km) |
| South Valley to Coccaglio | 5,612.96 mi (9,033.19 km) |
| South Valley to Codigoro | 5,723.53 mi (9,211.13 km) |
| South Valley to Codogno | 5,621.82 mi (9,047.45 km) |
| South Valley to Codroipo | 5,699.60 mi (9,172.61 km) |
| South Valley to Cogoleto | 5,618.59 mi (9,042.24 km) |
| South Valley to Colle di Val d'Elsa | 5,756.16 mi (9,263.64 km) |
| South Valley to Colle Salvetti | 5,722.90 mi (9,210.11 km) |
| South Valley to Collecchio | 5,659.39 mi (9,107.91 km) |
| South Valley to Colleferro | 5,905.03 mi (9,503.23 km) |
