| Marshalltown to Carmona | 4,435.29 mi (7,137.91 km) |
| Marshalltown to Cartagena | 4,637.67 mi (7,463.61 km) |
| Marshalltown to Cartama | 4,510.46 mi (7,258.88 km) |
| Marshalltown to Cartaya | 4,373.58 mi (7,038.59 km) |
| Marshalltown to Caspe | 4,531.53 mi (7,292.79 km) |
| Marshalltown to Cassa de la Selva | 4,626.47 mi (7,445.59 km) |
| Marshalltown to Castalla | 4,610.63 mi (7,420.10 km) |
| Marshalltown to Castellbisbal | 4,606.38 mi (7,413.25 km) |
| Marshalltown to Castelldefels | 4,614.20 mi (7,425.84 km) |
| Marshalltown to Castello de Ampurias | 4,619.55 mi (7,434.44 km) |
| Marshalltown to Castellon de la Plana | 4,581.91 mi (7,373.87 km) |
| Marshalltown to Castilleja de la Cuesta | 4,419.69 mi (7,112.80 km) |
| Marshalltown to Catarroja | 4,589.44 mi (7,386.00 km) |
| Marshalltown to Catral | 4,622.59 mi (7,439.34 km) |
| Marshalltown to Caudete | 4,592.41 mi (7,390.77 km) |
