| Iowa City to Dover (New Hampshire) | 1,055.63 mi (1,698.87 km) |
| Iowa City to Dover (New Jersey) | 881.47 mi (1,418.59 km) |
| Iowa City to Dover (Ohio) | 528.74 mi (850.92 km) |
| Iowa City to Downers Grove (Illinois) | 181.40 mi (291.94 km) |
| Iowa City to Downey (California) | 1,539.56 mi (2,477.68 km) |
| Iowa City to Dranesville (Virginia) | 767.27 mi (1,234.80 km) |
| Iowa City to Draper (Utah) | 1,059.47 mi (1,705.05 km) |
| Iowa City to Drexel Heights (Arizona) | 1,258.36 mi (2,025.13 km) |
| Iowa City to Drexel Hill (Pennsylvania) | 855.51 mi (1,376.81 km) |
| Iowa City to Duarte (California) | 1,523.21 mi (2,451.37 km) |
| Iowa City to Dublin (California) | 1,628.70 mi (2,621.14 km) |
| Iowa City to Dublin (Georgia) | 787.63 mi (1,267.57 km) |
| Iowa City to Dublin (Ohio) | 450.62 mi (725.20 km) |
| Iowa City to Dubuque (Iowa) | 72.01 mi (115.89 km) |
| Iowa City to Duluth (Georgia) | 664.01 mi (1,068.62 km) |
