| Cave to Jacksonville (Texas) | 5,600.15 mi (9,012.56 km) |
| Cave to Jacksonville Beach (Florida) | 5,063.99 mi (8,149.70 km) |
| Cave to James Island (South Carolina) | 4,890.70 mi (7,870.81 km) |
| Cave to Jamestown (New York) | 4,476.08 mi (7,203.55 km) |
| Cave to Jamestown (North Dakota) | 5,015.41 mi (8,071.53 km) |
| Cave to Janesville (Wisconsin) | 4,850.80 mi (7,806.60 km) |
| Cave to Jasmine Estates (Florida) | 5,211.09 mi (8,386.43 km) |
| Cave to Jasper (Alabama) | 5,169.99 mi (8,320.29 km) |
| Cave to Jasper (Indiana) | 4,954.26 mi (7,973.12 km) |
| Cave to Jefferson (Georgia) | 4,995.77 mi (8,039.91 km) |
| Cave to Jefferson (Louisiana) | 5,474.70 mi (8,810.67 km) |
| Cave to Jefferson City (Missouri) | 5,161.63 mi (8,306.83 km) |
| Cave to Jefferson Hills (Pennsylvania) | 4,577.39 mi (7,366.60 km) |
| Cave to Jefferson Valley-Yorktown (New York) | 4,271.98 mi (6,875.09 km) |
| Cave to Jeffersontown (Kentucky) | 4,904.78 mi (7,893.48 km) |
