| Iowa City to Castrovillari | 5,214.69 mi (8,392.24 km) |
| Iowa City to Catania | 5,279.02 mi (8,495.77 km) |
| Iowa City to Catanzaro | 5,273.44 mi (8,486.79 km) |
| Iowa City to Cattolica | 4,891.51 mi (7,872.13 km) |
| Iowa City to Cava de' Tirreni | 5,115.11 mi (8,231.98 km) |
| Iowa City to Cavallino | 5,268.23 mi (8,478.40 km) |
| Iowa City to Cavarzere | 4,815.25 mi (7,749.40 km) |
| Iowa City to Cave | 4,995.25 mi (8,039.08 km) |
| Iowa City to Cavriago | 4,775.26 mi (7,685.04 km) |
| Iowa City to Cavriglia | 4,863.32 mi (7,826.77 km) |
| Iowa City to Cazzago San Martino | 4,718.11 mi (7,593.06 km) |
| Iowa City to Ceccano | 5,022.16 mi (8,082.38 km) |
| Iowa City to Cecina | 4,834.44 mi (7,780.28 km) |
| Iowa City to Cefalu | 5,210.84 mi (8,386.04 km) |
| Iowa City to Ceglie Messapico | 5,225.68 mi (8,409.93 km) |
