| Upper Montclair to Cividale del Friuli | 4,178.02 mi (6,723.87 km) |
| Upper Montclair to Civita Castellana | 4,267.07 mi (6,867.19 km) |
| Upper Montclair to Civitanova Marche | 4,288.73 mi (6,902.04 km) |
| Upper Montclair to Civitavecchia | 4,247.24 mi (6,835.27 km) |
| Upper Montclair to Civitella in Val di Chiana | 4,197.46 mi (6,755.17 km) |
| Upper Montclair to Clusone | 4,038.76 mi (6,499.76 km) |
| Upper Montclair to Coccaglio | 4,050.38 mi (6,518.45 km) |
| Upper Montclair to Codigoro | 4,165.89 mi (6,704.36 km) |
| Upper Montclair to Codogno | 4,051.86 mi (6,520.83 km) |
| Upper Montclair to Codroipo | 4,163.77 mi (6,700.94 km) |
| Upper Montclair to Cogoleto | 4,031.24 mi (6,487.65 km) |
| Upper Montclair to Colle di Val d'Elsa | 4,172.68 mi (6,715.28 km) |
| Upper Montclair to Colle Salvetti | 4,137.53 mi (6,658.72 km) |
| Upper Montclair to Collecchio | 4,087.36 mi (6,577.97 km) |
| Upper Montclair to Colleferro | 4,313.88 mi (6,942.51 km) |
