| Blackburn to Jacksonville (Texas) | 4,578.14 mi (7,367.80 km) |
| Blackburn to Jacksonville Beach (Florida) | 4,124.00 mi (6,636.94 km) |
| Blackburn to James Island (South Carolina) | 3,940.85 mi (6,342.18 km) |
| Blackburn to Jamestown (New York) | 3,463.09 mi (5,573.31 km) |
| Blackburn to Jamestown (North Dakota) | 3,935.82 mi (6,334.10 km) |
| Blackburn to Janesville (Wisconsin) | 3,802.76 mi (6,119.96 km) |
| Blackburn to Jasmine Estates (Florida) | 4,277.92 mi (6,884.65 km) |
| Blackburn to Jasper (Alabama) | 4,173.85 mi (6,717.16 km) |
| Blackburn to Jasper (Indiana) | 3,933.81 mi (6,330.86 km) |
| Blackburn to Jefferson (Georgia) | 4,015.90 mi (6,462.96 km) |
| Blackburn to Jefferson (Louisiana) | 4,487.07 mi (7,221.24 km) |
| Blackburn to Jefferson City (Missouri) | 4,121.67 mi (6,633.19 km) |
| Blackburn to Jefferson Hills (Pennsylvania) | 3,573.49 mi (5,750.97 km) |
| Blackburn to Jefferson Valley-Yorktown (New York) | 3,286.78 mi (5,289.56 km) |
| Blackburn to Jeffersontown (Kentucky) | 3,890.76 mi (6,261.58 km) |
