| Iowa City to Carterton | 4,041.86 mi (6,504.75 km) |
| Iowa City to Castle Bromwich | 4,009.98 mi (6,453.44 km) |
| Iowa City to Castleford | 3,986.32 mi (6,415.37 km) |
| Iowa City to Castleton | 3,960.68 mi (6,374.10 km) |
| Iowa City to Caterham | 4,114.63 mi (6,621.86 km) |
| Iowa City to Catford | 4,111.22 mi (6,616.37 km) |
| Iowa City to Caversham | 4,074.84 mi (6,557.82 km) |
| Iowa City to Chaddesden | 4,008.87 mi (6,451.66 km) |
| Iowa City to Chalfont Saint Peter | 4,085.70 mi (6,575.29 km) |
| Iowa City to Chandlers Ford | 4,075.86 mi (6,559.47 km) |
| Iowa City to Chapel en le Frith | 3,978.64 mi (6,403.00 km) |
| Iowa City to Chapeltown | 3,990.55 mi (6,422.17 km) |
| Iowa City to Chard | 4,019.36 mi (6,468.53 km) |
| Iowa City to Charlton Kings | 4,020.72 mi (6,470.72 km) |
| Iowa City to Chatham | 4,133.99 mi (6,653.02 km) |
