| Montclair to Cividale del Friuli | 6,116.02 mi (9,842.79 km) |
| Montclair to Civita Castellana | 6,288.52 mi (10,120.39 km) |
| Montclair to Civitanova Marche | 6,276.60 mi (10,101.21 km) |
| Montclair to Civitavecchia | 6,279.09 mi (10,105.23 km) |
| Montclair to Civitella in Val di Chiana | 6,206.46 mi (9,988.33 km) |
| Montclair to Clusone | 6,020.41 mi (9,688.91 km) |
| Montclair to Coccaglio | 6,037.98 mi (9,717.20 km) |
| Montclair to Codigoro | 6,143.76 mi (9,887.43 km) |
| Montclair to Codogno | 6,050.26 mi (9,736.95 km) |
| Montclair to Codroipo | 6,109.79 mi (9,832.75 km) |
| Montclair to Cogoleto | 6,055.66 mi (9,745.65 km) |
| Montclair to Colle di Val d'Elsa | 6,188.52 mi (9,959.47 km) |
| Montclair to Colle Salvetti | 6,156.88 mi (9,908.55 km) |
| Montclair to Collecchio | 6,088.05 mi (9,797.77 km) |
| Montclair to Colleferro | 6,338.33 mi (10,200.56 km) |
