| Wilmette to Cividale del Friuli | 4,661.43 mi (7,501.85 km) |
| Wilmette to Civita Castellana | 4,784.54 mi (7,699.97 km) |
| Wilmette to Civitanova Marche | 4,793.36 mi (7,714.16 km) |
| Wilmette to Civitavecchia | 4,768.53 mi (7,674.21 km) |
| Wilmette to Civitella in Val di Chiana | 4,709.01 mi (7,578.43 km) |
| Wilmette to Clusone | 4,537.03 mi (7,301.64 km) |
| Wilmette to Coccaglio | 4,551.20 mi (7,324.44 km) |
| Wilmette to Codigoro | 4,664.70 mi (7,507.11 km) |
| Wilmette to Codogno | 4,557.00 mi (7,333.78 km) |
| Wilmette to Codroipo | 4,650.07 mi (7,483.56 km) |
| Wilmette to Cogoleto | 4,546.49 mi (7,316.86 km) |
| Wilmette to Colle di Val d'Elsa | 4,686.58 mi (7,542.31 km) |
| Wilmette to Colle Salvetti | 4,652.31 mi (7,487.17 km) |
| Wilmette to Collecchio | 4,593.96 mi (7,393.27 km) |
| Wilmette to Colleferro | 4,833.19 mi (7,778.26 km) |
