| Halfway to Jacksonville (Texas) | 1,111.00 mi (1,787.99 km) |
| Halfway to Jacksonville Beach (Florida) | 677.05 mi (1,089.61 km) |
| Halfway to James Island (South Carolina) | 490.53 mi (789.43 km) |
| Halfway to Jamestown (New York) | 187.79 mi (302.21 km) |
| Halfway to Jamestown (North Dakota) | 1,162.23 mi (1,870.43 km) |
| Halfway to Janesville (Wisconsin) | 621.59 mi (1,000.36 km) |
| Halfway to Jasmine Estates (Florida) | 831.25 mi (1,337.77 km) |
| Halfway to Jasper (Alabama) | 659.24 mi (1,060.94 km) |
| Halfway to Jasper (Indiana) | 499.31 mi (803.57 km) |
| Halfway to Jefferson (Georgia) | 496.94 mi (799.75 km) |
| Halfway to Jefferson (Louisiana) | 967.18 mi (1,556.53 km) |
| Halfway to Jefferson City (Missouri) | 775.06 mi (1,247.34 km) |
| Halfway to Jefferson Hills (Pennsylvania) | 123.70 mi (199.08 km) |
| Halfway to Jefferson Valley-Yorktown (New York) | 239.47 mi (385.39 km) |
| Halfway to Jeffersontown (Kentucky) | 430.38 mi (692.62 km) |
