| Iowa City to Coswig | 4,538.91 mi (7,304.67 km) |
| Iowa City to Cottbus | 4,608.18 mi (7,416.15 km) |
| Iowa City to Crailsheim | 4,570.53 mi (7,355.56 km) |
| Iowa City to Cremlingen | 4,463.22 mi (7,182.85 km) |
| Iowa City to Crimmitschau | 4,582.11 mi (7,374.19 km) |
| Iowa City to Cuxhaven | 4,332.58 mi (6,972.61 km) |
| Iowa City to Dachau | 4,656.62 mi (7,494.11 km) |
| Iowa City to Dallgow-Doberitz | 4,532.42 mi (7,294.22 km) |
| Iowa City to Damme | 4,367.80 mi (7,029.30 km) |
| Iowa City to Darmstadt | 4,489.10 mi (7,224.50 km) |
| Iowa City to Dassel | 4,448.02 mi (7,158.40 km) |
| Iowa City to Datteln | 4,371.55 mi (7,035.32 km) |
| Iowa City to Dautphe | 4,445.82 mi (7,154.85 km) |
| Iowa City to Deggendorf | 4,687.11 mi (7,543.18 km) |
| Iowa City to Delbruck | 4,410.29 mi (7,097.67 km) |
