| Herndon to Jacksonville (Texas) | 1,113.61 mi (1,792.19 km) |
| Herndon to Jacksonville Beach (Florida) | 642.32 mi (1,033.72 km) |
| Herndon to James Island (South Carolina) | 453.81 mi (730.34 km) |
| Herndon to Jamestown (New York) | 236.92 mi (381.28 km) |
| Herndon to Jamestown (North Dakota) | 1,203.88 mi (1,937.46 km) |
| Herndon to Janesville (Wisconsin) | 659.12 mi (1,060.75 km) |
| Herndon to Jasmine Estates (Florida) | 797.91 mi (1,284.11 km) |
| Herndon to Jasper (Alabama) | 652.98 mi (1,050.88 km) |
| Herndon to Jasper (Indiana) | 516.58 mi (831.35 km) |
| Herndon to Jefferson (Georgia) | 479.86 mi (772.26 km) |
| Herndon to Jefferson (Louisiana) | 955.61 mi (1,537.90 km) |
| Herndon to Jefferson City (Missouri) | 796.31 mi (1,281.54 km) |
| Herndon to Jefferson Hills (Pennsylvania) | 163.42 mi (263.00 km) |
| Herndon to Jefferson Valley-Yorktown (New York) | 249.34 mi (401.28 km) |
| Herndon to Jeffersontown (Kentucky) | 444.96 mi (716.09 km) |
