| Norristown to Duluth (Minnesota) | 957.11 mi (1,540.31 km) |
| Norristown to Dumas (Texas) | 1,473.52 mi (2,371.40 km) |
| Norristown to Dumont (New Jersey) | 90.76 mi (146.07 km) |
| Norristown to Duncan (Oklahoma) | 1,295.03 mi (2,084.16 km) |
| Norristown to Duncanville (Texas) | 1,302.06 mi (2,095.47 km) |
| Norristown to Dundalk (Maryland) | 85.04 mi (136.86 km) |
| Norristown to Dunedin (Florida) | 936.84 mi (1,507.69 km) |
| Norristown to Dunkirk (New York) | 263.54 mi (424.13 km) |
| Norristown to Dunmore (Pennsylvania) | 90.41 mi (145.49 km) |
| Norristown to Dunwoody (Georgia) | 653.04 mi (1,050.96 km) |
| Norristown to Durango (Colorado) | 1,755.90 mi (2,825.84 km) |
| Norristown to Durant (Oklahoma) | 1,231.93 mi (1,982.59 km) |
| Norristown to Durham (North Carolina) | 345.64 mi (556.26 km) |
| Norristown to Dyer (Indiana) | 642.89 mi (1,034.63 km) |
| Norristown to Dyersburg (Tennessee) | 812.60 mi (1,307.76 km) |
