| Naperville to Cividale del Friuli | 4,693.39 mi (7,553.29 km) |
| Naperville to Civita Castellana | 4,816.34 mi (7,751.15 km) |
| Naperville to Civitanova Marche | 4,825.24 mi (7,765.47 km) |
| Naperville to Civitavecchia | 4,800.31 mi (7,725.34 km) |
| Naperville to Civitella in Val di Chiana | 4,740.85 mi (7,629.66 km) |
| Naperville to Clusone | 4,568.93 mi (7,352.98 km) |
| Naperville to Coccaglio | 4,583.09 mi (7,375.76 km) |
| Naperville to Codigoro | 4,696.60 mi (7,558.45 km) |
| Naperville to Codogno | 4,588.87 mi (7,385.06 km) |
| Naperville to Codroipo | 4,682.02 mi (7,534.98 km) |
| Naperville to Cogoleto | 4,578.29 mi (7,368.04 km) |
| Naperville to Colle di Val d'Elsa | 4,718.39 mi (7,593.52 km) |
| Naperville to Colle Salvetti | 4,684.12 mi (7,538.36 km) |
| Naperville to Collecchio | 4,625.82 mi (7,444.54 km) |
| Naperville to Colleferro | 4,864.98 mi (7,829.42 km) |
