| Portage to Duluth (Minnesota) | 451.52 mi (726.65 km) |
| Portage to Dumas (Texas) | 979.63 mi (1,576.57 km) |
| Portage to Dumont (New Jersey) | 605.26 mi (974.08 km) |
| Portage to Duncan (Oklahoma) | 850.68 mi (1,369.03 km) |
| Portage to Duncanville (Texas) | 904.87 mi (1,456.25 km) |
| Portage to Dundalk (Maryland) | 517.12 mi (832.22 km) |
| Portage to Dunedin (Florida) | 991.44 mi (1,595.57 km) |
| Portage to Dunkirk (New York) | 320.13 mi (515.19 km) |
| Portage to Dunmore (Pennsylvania) | 516.71 mi (831.56 km) |
| Portage to Dunwoody (Georgia) | 574.79 mi (925.03 km) |
| Portage to Durango (Colorado) | 1,228.30 mi (1,976.76 km) |
| Portage to Durant (Oklahoma) | 815.04 mi (1,311.67 km) |
| Portage to Durham (North Carolina) | 559.43 mi (900.31 km) |
| Portage to Dyer (Indiana) | 110.01 mi (177.05 km) |
| Portage to Dyersburg (Tennessee) | 471.01 mi (758.01 km) |
