| Iowa City to Duluth (Minnesota) | 355.02 mi (571.34 km) |
| Iowa City to Dumas (Texas) | 689.34 mi (1,109.38 km) |
| Iowa City to Dumont (New Jersey) | 910.09 mi (1,464.65 km) |
| Iowa City to Duncan (Oklahoma) | 601.62 mi (968.22 km) |
| Iowa City to Duncanville (Texas) | 689.11 mi (1,109.02 km) |
| Iowa City to Dundalk (Maryland) | 806.30 mi (1,297.61 km) |
| Iowa City to Dunedin (Florida) | 1,062.46 mi (1,709.86 km) |
| Iowa City to Dunkirk (New York) | 627.69 mi (1,010.16 km) |
| Iowa City to Dunmore (Pennsylvania) | 822.53 mi (1,323.73 km) |
| Iowa City to Dunwoody (Georgia) | 662.30 mi (1,065.87 km) |
| Iowa City to Durango (Colorado) | 921.56 mi (1,483.10 km) |
| Iowa City to Durant (Oklahoma) | 591.85 mi (952.48 km) |
| Iowa City to Durham (North Carolina) | 783.67 mi (1,261.20 km) |
| Iowa City to Dyer (Indiana) | 208.11 mi (334.93 km) |
| Iowa City to Dyersburg (Tennessee) | 404.47 mi (650.93 km) |
