| Mack to Jacksonville (North Carolina) | 504.83 mi (812.44 km) |
| Mack to Jacksonville (Texas) | 773.79 mi (1,245.30 km) |
| Mack to Jacksonville Beach (Florida) | 640.39 mi (1,030.61 km) |
| Mack to James Island (South Carolina) | 516.23 mi (830.79 km) |
| Mack to Jamestown (New York) | 350.55 mi (564.15 km) |
| Mack to Jamestown (North Dakota) | 885.65 mi (1,425.31 km) |
| Mack to Janesville (Wisconsin) | 332.92 mi (535.79 km) |
| Mack to Jasmine Estates (Florida) | 758.69 mi (1,220.99 km) |
| Mack to Jasper (Alabama) | 393.31 mi (632.98 km) |
| Mack to Jasper (Indiana) | 132.51 mi (213.25 km) |
| Mack to Jefferson (Georgia) | 351.39 mi (565.51 km) |
| Mack to Jefferson (Louisiana) | 706.83 mi (1,137.53 km) |
| Mack to Jefferson City (Missouri) | 405.21 mi (652.13 km) |
| Mack to Jefferson Hills (Pennsylvania) | 264.29 mi (425.33 km) |
| Mack to Jefferson Valley-Yorktown (New York) | 592.60 mi (953.70 km) |
