| Somerset to Cividale del Friuli | 4,204.57 mi (6,766.61 km) |
| Somerset to Civita Castellana | 4,292.92 mi (6,908.78 km) |
| Somerset to Civitanova Marche | 4,314.85 mi (6,944.08 km) |
| Somerset to Civitavecchia | 4,273.00 mi (6,876.72 km) |
| Somerset to Civitella in Val di Chiana | 4,223.46 mi (6,797.00 km) |
| Somerset to Clusone | 4,065.07 mi (6,542.10 km) |
| Somerset to Coccaglio | 4,076.63 mi (6,560.70 km) |
| Somerset to Codigoro | 4,192.16 mi (6,746.63 km) |
| Somerset to Codogno | 4,078.02 mi (6,562.94 km) |
| Somerset to Codroipo | 4,190.28 mi (6,743.60 km) |
| Somerset to Cogoleto | 4,057.18 mi (6,529.41 km) |
| Somerset to Colle di Val d'Elsa | 4,198.63 mi (6,757.04 km) |
| Somerset to Colle Salvetti | 4,163.47 mi (6,700.45 km) |
| Somerset to Collecchio | 4,113.48 mi (6,620.01 km) |
| Somerset to Colleferro | 4,339.67 mi (6,984.02 km) |
