| Iowa City to Commerce (California) | 1,538.72 mi (2,476.32 km) |
| Iowa City to Commerce City (Colorado) | 706.88 mi (1,137.62 km) |
| Iowa City to Compton (California) | 1,545.89 mi (2,487.87 km) |
| Iowa City to Comstock Park (Michigan) | 313.77 mi (504.97 km) |
| Iowa City to Concord (California) | 1,628.40 mi (2,620.66 km) |
| Iowa City to Concord (Missouri) | 225.91 mi (363.57 km) |
| Iowa City to Concord (New Hampshire) | 1,021.59 mi (1,644.09 km) |
| Iowa City to Concord (North Carolina) | 729.76 mi (1,174.44 km) |
| Iowa City to Conneaut (Ohio) | 564.61 mi (908.66 km) |
| Iowa City to Connersville (Indiana) | 362.11 mi (582.76 km) |
| Iowa City to Conroe (Texas) | 813.29 mi (1,308.87 km) |
| Iowa City to Converse (Texas) | 920.86 mi (1,481.99 km) |
| Iowa City to Conway (Arkansas) | 457.50 mi (736.28 km) |
| Iowa City to Conway (Florida) | 1,074.85 mi (1,729.80 km) |
| Iowa City to Conway (South Carolina) | 868.52 mi (1,397.74 km) |
