| Iowa City to Cassina de' Pecchi | 4,695.68 mi (7,556.96 km) |
| Iowa City to Cassino | 5,044.70 mi (8,118.66 km) |
| Iowa City to Castagneto Carducci | 4,844.22 mi (7,796.02 km) |
| Iowa City to Castano Primo | 4,671.24 mi (7,517.63 km) |
| Iowa City to Castel Bolognese | 4,840.45 mi (7,789.95 km) |
| Iowa City to Castel Gandolfo | 4,987.36 mi (8,026.38 km) |
| Iowa City to Castel Goffredo | 4,747.34 mi (7,640.10 km) |
| Iowa City to Castel Maggiore | 4,812.97 mi (7,745.73 km) |
| Iowa City to Castel Mella | 4,726.32 mi (7,606.27 km) |
| Iowa City to Castel San Giorgio | 5,111.28 mi (8,225.81 km) |
| Iowa City to Castel San Giovanni | 4,717.98 mi (7,592.86 km) |
| Iowa City to Castel San Pietro Terme | 4,828.52 mi (7,770.75 km) |
| Iowa City to Castel Volturno | 5,068.44 mi (8,156.86 km) |
| Iowa City to Castelbuono | 5,218.84 mi (8,398.91 km) |
| Iowa City to Casteldaccia | 5,190.48 mi (8,353.26 km) |
