| Johnston to Dover (New Hampshire) | 1,165.50 mi (1,875.69 km) |
| Johnston to Dover (New Jersey) | 994.41 mi (1,600.35 km) |
| Johnston to Dover (Ohio) | 641.80 mi (1,032.88 km) |
| Johnston to Downers Grove (Illinois) | 294.21 mi (473.48 km) |
| Johnston to Downey (California) | 1,429.72 mi (2,300.91 km) |
| Johnston to Dranesville (Virginia) | 879.69 mi (1,415.72 km) |
| Johnston to Draper (Utah) | 946.27 mi (1,522.87 km) |
| Johnston to Drexel Heights (Arizona) | 1,158.71 mi (1,864.76 km) |
| Johnston to Drexel Hill (Pennsylvania) | 968.71 mi (1,558.99 km) |
| Johnston to Duarte (California) | 1,413.20 mi (2,274.33 km) |
| Johnston to Dublin (California) | 1,515.53 mi (2,439.01 km) |
| Johnston to Dublin (Georgia) | 866.88 mi (1,395.11 km) |
| Johnston to Dublin (Ohio) | 562.71 mi (905.60 km) |
| Johnston to Dubuque (Iowa) | 164.43 mi (264.63 km) |
| Johnston to Duluth (Georgia) | 743.95 mi (1,197.27 km) |
