| Norristown to Dover (New Hampshire) | 312.61 mi (503.10 km) |
| Norristown to Dover (New Jersey) | 66.80 mi (107.50 km) |
| Norristown to Dover (Ohio) | 324.62 mi (522.43 km) |
| Norristown to Downers Grove (Illinois) | 670.85 mi (1,079.63 km) |
| Norristown to Downey (California) | 2,375.34 mi (3,822.74 km) |
| Norristown to Dranesville (Virginia) | 133.23 mi (214.41 km) |
| Norristown to Draper (Utah) | 1,910.44 mi (3,074.56 km) |
| Norristown to Drexel Heights (Arizona) | 2,052.29 mi (3,302.85 km) |
| Norristown to Drexel Hill (Pennsylvania) | 12.10 mi (19.48 km) |
| Norristown to Duarte (California) | 2,359.81 mi (3,797.75 km) |
| Norristown to Dublin (California) | 2,479.56 mi (3,990.47 km) |
| Norristown to Dublin (Georgia) | 672.60 mi (1,082.45 km) |
| Norristown to Dublin (Ohio) | 412.30 mi (663.53 km) |
| Norristown to Dubuque (Iowa) | 813.07 mi (1,308.50 km) |
| Norristown to Duluth (Georgia) | 643.24 mi (1,035.20 km) |
