| Highlands Ranch to Cividale del Friuli | 5,403.60 mi (8,696.25 km) |
| Highlands Ranch to Civita Castellana | 5,557.77 mi (8,944.37 km) |
| Highlands Ranch to Civitanova Marche | 5,553.89 mi (8,938.12 km) |
| Highlands Ranch to Civitavecchia | 5,545.75 mi (8,925.02 km) |
| Highlands Ranch to Civitella in Val di Chiana | 5,477.81 mi (8,815.68 km) |
| Highlands Ranch to Clusone | 5,296.15 mi (8,523.33 km) |
| Highlands Ranch to Coccaglio | 5,312.51 mi (8,549.66 km) |
| Highlands Ranch to Codigoro | 5,421.91 mi (8,725.72 km) |
| Highlands Ranch to Codogno | 5,322.36 mi (8,565.51 km) |
| Highlands Ranch to Codroipo | 5,395.30 mi (8,682.90 km) |
| Highlands Ranch to Cogoleto | 5,321.69 mi (8,564.43 km) |
| Highlands Ranch to Colle di Val d'Elsa | 5,458.03 mi (8,783.85 km) |
| Highlands Ranch to Colle Salvetti | 5,425.21 mi (8,731.03 km) |
| Highlands Ranch to Collecchio | 5,360.05 mi (8,626.16 km) |
| Highlands Ranch to Colleferro | 5,607.39 mi (9,024.23 km) |
