| Hard to Jacksonville (Texas) | 5,249.42 mi (8,448.12 km) |
| Hard to Jacksonville Beach (Florida) | 4,758.29 mi (7,657.73 km) |
| Hard to James Island (South Carolina) | 4,579.38 mi (7,369.80 km) |
| Hard to Jamestown (New York) | 4,129.24 mi (6,645.37 km) |
| Hard to Jamestown (North Dakota) | 4,620.79 mi (7,436.44 km) |
| Hard to Janesville (Wisconsin) | 4,482.39 mi (7,213.71 km) |
| Hard to Jasmine Estates (Florida) | 4,909.35 mi (7,900.83 km) |
| Hard to Jasper (Alabama) | 4,834.07 mi (7,779.69 km) |
| Hard to Jasper (Indiana) | 4,603.71 mi (7,408.96 km) |
| Hard to Jefferson (Georgia) | 4,668.64 mi (7,513.44 km) |
| Hard to Jefferson (Louisiana) | 5,144.17 mi (8,278.74 km) |
| Hard to Jefferson City (Missouri) | 4,798.93 mi (7,723.13 km) |
| Hard to Jefferson Hills (Pennsylvania) | 4,235.97 mi (6,817.14 km) |
| Hard to Jefferson Valley-Yorktown (New York) | 3,940.26 mi (6,341.24 km) |
| Hard to Jeffersontown (Kentucky) | 4,558.02 mi (7,335.43 km) |
