| Darby to Jeffersonville (Indiana) | 569.88 mi (917.13 km) |
| Darby to Jenison (Michigan) | 584.54 mi (940.73 km) |
| Darby to Jenks (Oklahoma) | 1,157.56 mi (1,862.91 km) |
| Darby to Jennings (Missouri) | 805.23 mi (1,295.90 km) |
| Darby to Jensen Beach (Florida) | 921.22 mi (1,482.56 km) |
| Darby to Jericho (New York) | 108.53 mi (174.67 km) |
| Darby to Jerome (Idaho) | 2,027.77 mi (3,263.38 km) |
| Darby to Jersey City (New Jersey) | 83.55 mi (134.46 km) |
| Darby to Jessup (Maryland) | 96.82 mi (155.81 km) |
| Darby to Johns Creek (Georgia) | 639.00 mi (1,028.38 km) |
| Darby to Johnson City (New York) | 156.47 mi (251.82 km) |
| Darby to Johnson City (Tennessee) | 459.03 mi (738.74 km) |
| Darby to Johnston (Iowa) | 971.37 mi (1,563.27 km) |
| Darby to Johnstown (Colorado) | 1,561.05 mi (2,512.27 km) |
| Darby to Johnstown (Pennsylvania) | 195.28 mi (314.28 km) |
