| Hopatcong to Cividale del Friuli | 4,192.44 mi (6,747.08 km) |
| Hopatcong to Civita Castellana | 4,282.95 mi (6,892.74 km) |
| Hopatcong to Civitanova Marche | 4,304.07 mi (6,926.74 km) |
| Hopatcong to Civitavecchia | 4,263.27 mi (6,861.07 km) |
| Hopatcong to Civitella in Val di Chiana | 4,213.07 mi (6,780.28 km) |
| Hopatcong to Clusone | 4,053.75 mi (6,523.88 km) |
| Hopatcong to Coccaglio | 4,065.47 mi (6,542.74 km) |
| Hopatcong to Codigoro | 4,180.95 mi (6,728.59 km) |
| Hopatcong to Codogno | 4,067.13 mi (6,545.42 km) |
| Hopatcong to Codroipo | 4,178.31 mi (6,724.33 km) |
| Hopatcong to Cogoleto | 4,046.93 mi (6,512.91 km) |
| Hopatcong to Colle di Val d'Elsa | 4,188.37 mi (6,740.54 km) |
| Hopatcong to Colle Salvetti | 4,153.25 mi (6,684.01 km) |
| Hopatcong to Collecchio | 4,102.71 mi (6,602.68 km) |
| Hopatcong to Colleferro | 4,329.85 mi (6,968.22 km) |
