| Iowa City to Casamassima | 5,189.24 mi (8,351.27 km) |
| Iowa City to Casandrino | 5,086.81 mi (8,186.44 km) |
| Iowa City to Casapulla | 5,082.01 mi (8,178.71 km) |
| Iowa City to Casarano | 5,281.26 mi (8,499.37 km) |
| Iowa City to Casatenovo | 4,685.91 mi (7,541.24 km) |
| Iowa City to Casciana Terme | 4,829.26 mi (7,771.95 km) |
| Iowa City to Cascina | 4,819.84 mi (7,756.78 km) |
| Iowa City to Caselle Torinese | 4,643.39 mi (7,472.81 km) |
| Iowa City to Caserta | 5,083.96 mi (8,181.85 km) |
| Iowa City to Casier | 4,801.03 mi (7,726.52 km) |
| Iowa City to Casorate Primo | 4,690.66 mi (7,548.89 km) |
| Iowa City to Casoria | 5,090.29 mi (8,192.04 km) |
| Iowa City to Cassano al Ionio | 5,220.81 mi (8,402.08 km) |
| Iowa City to Cassano d'Adda | 4,700.72 mi (7,565.08 km) |
| Iowa City to Cassano delle Murge | 5,186.62 mi (8,347.06 km) |
