| Mission to Cividale del Friuli | 5,871.39 mi (9,449.09 km) |
| Mission to Civita Castellana | 5,972.06 mi (9,611.10 km) |
| Mission to Civitanova Marche | 5,990.24 mi (9,640.35 km) |
| Mission to Civitavecchia | 5,953.05 mi (9,580.51 km) |
| Mission to Civitella in Val di Chiana | 5,900.83 mi (9,496.46 km) |
| Mission to Clusone | 5,737.61 mi (9,233.79 km) |
| Mission to Coccaglio | 5,750.14 mi (9,253.95 km) |
| Mission to Codigoro | 5,865.22 mi (9,439.16 km) |
| Mission to Codogno | 5,753.04 mi (9,258.62 km) |
| Mission to Codroipo | 5,858.32 mi (9,428.06 km) |
| Mission to Cogoleto | 5,735.28 mi (9,230.04 km) |
| Mission to Colle di Val d'Elsa | 5,876.62 mi (9,457.51 km) |
| Mission to Colle Salvetti | 5,841.64 mi (9,401.22 km) |
| Mission to Collecchio | 5,789.07 mi (9,316.61 km) |
| Mission to Colleferro | 6,019.36 mi (9,687.22 km) |
