| Iowa City to Civril | 5,791.56 mi (9,320.61 km) |
| Iowa City to Cizre | 6,248.10 mi (10,055.35 km) |
| Iowa City to Cobanlar | 5,806.35 mi (9,344.42 km) |
| Iowa City to Corlu | 5,575.12 mi (8,972.29 km) |
| Iowa City to Corum | 5,843.94 mi (9,404.90 km) |
| Iowa City to Cukurca | 6,294.90 mi (10,130.66 km) |
| Iowa City to Cukurcayir | 5,966.13 mi (9,601.56 km) |
| Iowa City to Cumayeri | 5,696.11 mi (9,167.01 km) |
| Iowa City to Cumra | 5,934.84 mi (9,551.20 km) |
| Iowa City to Cungus | 6,109.83 mi (9,832.82 km) |
| Iowa City to Dargecit | 6,221.91 mi (10,013.19 km) |
| Iowa City to Davutlar | 5,734.94 mi (9,229.50 km) |
| Iowa City to Demirozu | 6,016.71 mi (9,682.96 km) |
| Iowa City to Demre | 5,909.15 mi (9,509.85 km) |
| Iowa City to Denizciler | 6,100.45 mi (9,817.73 km) |
