| Northport to Jacksonville (North Carolina) | 593.09 mi (954.49 km) |
| Northport to Jacksonville (Texas) | 454.72 mi (731.80 km) |
| Northport to Jacksonville Beach (Florida) | 418.00 mi (672.71 km) |
| Northport to James Island (South Carolina) | 445.25 mi (716.56 km) |
| Northport to Jamestown (New York) | 762.10 mi (1,226.49 km) |
| Northport to Jamestown (North Dakota) | 1,107.98 mi (1,783.12 km) |
| Northport to Janesville (Wisconsin) | 655.84 mi (1,055.47 km) |
| Northport to Jasmine Estates (Florida) | 450.00 mi (724.20 km) |
| Northport to Jasper (Alabama) | 45.07 mi (72.54 km) |
| Northport to Jasper (Indiana) | 356.69 mi (574.03 km) |
| Northport to Jefferson (Georgia) | 237.64 mi (382.45 km) |
| Northport to Jefferson (Louisiana) | 272.99 mi (439.33 km) |
| Northport to Jefferson City (Missouri) | 447.22 mi (719.74 km) |
| Northport to Jefferson Hills (Pennsylvania) | 644.60 mi (1,037.38 km) |
| Northport to Jefferson Valley-Yorktown (New York) | 939.04 mi (1,511.24 km) |
