| Iowa City to Carrollwood (Florida) | 1,068.09 mi (1,718.93 km) |
| Iowa City to Carson (California) | 1,549.15 mi (2,493.11 km) |
| Iowa City to Carson City (Nevada) | 1,487.98 mi (2,394.66 km) |
| Iowa City to Carteret (New Jersey) | 902.07 mi (1,451.75 km) |
| Iowa City to Cartersville (Georgia) | 633.95 mi (1,020.25 km) |
| Iowa City to Carthage (Missouri) | 345.11 mi (555.39 km) |
| Iowa City to Cary (Illinois) | 172.96 mi (278.35 km) |
| Iowa City to Cary (North Carolina) | 795.16 mi (1,279.69 km) |
| Iowa City to Casa de Oro-Mount Helix (California) | 1,521.28 mi (2,448.26 km) |
| Iowa City to Casa Grande (Arizona) | 1,261.43 mi (2,030.08 km) |
| Iowa City to Casas Adobes (Arizona) | 1,248.49 mi (2,009.26 km) |
| Iowa City to Cascades (Virginia) | 765.24 mi (1,231.54 km) |
| Iowa City to Casper (Wyoming) | 759.89 mi (1,222.93 km) |
| Iowa City to Casselberry (Florida) | 1,065.21 mi (1,714.29 km) |
| Iowa City to Castaic (California) | 1,547.66 mi (2,490.71 km) |
