| Iowa City to Badger (Alaska) | 2,676.99 mi (4,308.20 km) |
| Iowa City to Bailey's Crossroads (Virginia) | 782.70 mi (1,259.63 km) |
| Iowa City to Bainbridge (Georgia) | 837.07 mi (1,347.14 km) |
| Iowa City to Bainbridge Island (Washington) | 1,567.94 mi (2,523.35 km) |
| Iowa City to Baker (Louisiana) | 765.33 mi (1,231.68 km) |
| Iowa City to Bakersfield (California) | 1,542.19 mi (2,481.92 km) |
| Iowa City to Balch Springs (Texas) | 677.59 mi (1,090.48 km) |
| Iowa City to Baldwin (New York) | 933.30 mi (1,502.01 km) |
| Iowa City to Baldwin (Pennsylvania) | 608.91 mi (979.94 km) |
| Iowa City to Baldwin Park (California) | 1,526.82 mi (2,457.19 km) |
| Iowa City to Ballenger Creek (Maryland) | 756.67 mi (1,217.74 km) |
| Iowa City to Ballwin (Missouri) | 217.73 mi (350.41 km) |
| Iowa City to Baltimore (Maryland) | 799.46 mi (1,286.60 km) |
| Iowa City to Bangor (Maine) | 1,161.34 mi (1,868.99 km) |
| Iowa City to Banning (California) | 1,477.13 mi (2,377.22 km) |
