| Marshalltown to Collegno | 4,680.82 mi (7,533.05 km) |
| Marshalltown to Cologno al Serio | 4,740.13 mi (7,628.50 km) |
| Marshalltown to Cologno Monzese | 4,726.59 mi (7,606.71 km) |
| Marshalltown to Colorno | 4,794.25 mi (7,715.61 km) |
| Marshalltown to Comacchio | 4,872.23 mi (7,841.10 km) |
| Marshalltown to Comiso | 5,324.31 mi (8,568.65 km) |
| Marshalltown to Como | 4,707.20 mi (7,575.50 km) |
| Marshalltown to Concordia Sagittaria | 4,849.02 mi (7,803.74 km) |
| Marshalltown to Concorezzo | 4,726.12 mi (7,605.96 km) |
| Marshalltown to Conegliano | 4,823.37 mi (7,762.47 km) |
| Marshalltown to Conselice | 4,867.33 mi (7,833.21 km) |
| Marshalltown to Conselve | 4,836.59 mi (7,783.74 km) |
| Marshalltown to Conversano | 5,230.55 mi (8,417.76 km) |
| Marshalltown to Copertino | 5,299.36 mi (8,528.50 km) |
| Marshalltown to Copparo | 4,850.21 mi (7,805.65 km) |
