| Iowa City to Baraboo (Wisconsin) | 154.99 mi (249.43 km) |
| Iowa City to Barberton (Ohio) | 516.65 mi (831.47 km) |
| Iowa City to Bardstown (Kentucky) | 417.58 mi (672.03 km) |
| Iowa City to Barrington (Illinois) | 178.26 mi (286.88 km) |
| Iowa City to Barstow (California) | 1,455.25 mi (2,342.01 km) |
| Iowa City to Bartlesville (Oklahoma) | 413.90 mi (666.11 km) |
| Iowa City to Bartlett (Illinois) | 172.57 mi (277.73 km) |
| Iowa City to Bartlett (Tennessee) | 453.26 mi (729.45 km) |
| Iowa City to Bartow (Florida) | 1,097.67 mi (1,766.53 km) |
| Iowa City to Batavia (Illinois) | 166.47 mi (267.90 km) |
| Iowa City to Batavia (New York) | 687.48 mi (1,106.38 km) |
| Iowa City to Batesville (Arkansas) | 406.80 mi (654.68 km) |
| Iowa City to Baton Rouge (Louisiana) | 775.12 mi (1,247.44 km) |
| Iowa City to Battle Creek (Michigan) | 326.59 mi (525.59 km) |
| Iowa City to Battle Ground (Washington) | 1,564.37 mi (2,517.61 km) |
