| Union to Cividale del Friuli | 4,959.56 mi (7,981.64 km) |
| Union to Civita Castellana | 5,078.07 mi (8,172.37 km) |
| Union to Civitanova Marche | 5,088.87 mi (8,189.75 km) |
| Union to Civitavecchia | 5,061.41 mi (8,145.56 km) |
| Union to Civitella in Val di Chiana | 5,003.40 mi (8,052.19 km) |
| Union to Clusone | 4,833.14 mi (7,778.18 km) |
| Union to Coccaglio | 4,846.97 mi (7,800.44 km) |
| Union to Codigoro | 4,960.88 mi (7,983.77 km) |
| Union to Codogno | 4,852.16 mi (7,808.80 km) |
| Union to Codroipo | 4,947.84 mi (7,962.78 km) |
| Union to Cogoleto | 4,840.09 mi (7,789.36 km) |
| Union to Colle di Val d'Elsa | 4,980.57 mi (8,015.45 km) |
| Union to Colle Salvetti | 4,946.12 mi (7,960.00 km) |
| Union to Collecchio | 4,888.95 mi (7,868.01 km) |
| Union to Colleferro | 5,126.48 mi (8,250.27 km) |
