| Iowa City to Creutzwald | 4,444.12 mi (7,152.11 km) |
| Iowa City to Croissy-sur-Seine | 4,284.93 mi (6,895.93 km) |
| Iowa City to Croix | 4,256.54 mi (6,850.23 km) |
| Iowa City to Crosne | 4,303.23 mi (6,925.37 km) |
| Iowa City to Cuers | 4,661.13 mi (7,501.37 km) |
| Iowa City to Cugnaux | 4,455.77 mi (7,170.88 km) |
| Iowa City to Cusset | 4,440.37 mi (7,146.08 km) |
| Iowa City to Dammarie-le-Lys | 4,317.47 mi (6,948.30 km) |
| Iowa City to Dammartin-en-Goele | 4,299.00 mi (6,918.58 km) |
| Iowa City to Dardilly | 4,504.50 mi (7,249.29 km) |
| Iowa City to Darnetal | 4,226.20 mi (6,801.41 km) |
| Iowa City to Dax | 4,349.48 mi (6,999.81 km) |
| Iowa City to Decines-Charpieu | 4,514.06 mi (7,264.68 km) |
| Iowa City to Denain | 4,278.52 mi (6,885.60 km) |
| Iowa City to Deuil-la-Barre | 4,288.35 mi (6,901.44 km) |
