| Cave to Jeffersonville (Indiana) | 4,904.64 mi (7,893.25 km) |
| Cave to Jenison (Michigan) | 4,714.65 mi (7,587.49 km) |
| Cave to Jenks (Oklahoma) | 5,435.37 mi (8,747.38 km) |
| Cave to Jennings (Missouri) | 5,077.03 mi (8,170.69 km) |
| Cave to Jensen Beach (Florida) | 5,142.20 mi (8,275.57 km) |
| Cave to Jericho (New York) | 4,280.28 mi (6,888.44 km) |
| Cave to Jerome (Idaho) | 5,744.72 mi (9,245.24 km) |
| Cave to Jersey City (New Jersey) | 4,306.07 mi (6,929.96 km) |
| Cave to Jessup (Maryland) | 4,485.62 mi (7,218.91 km) |
| Cave to Johns Creek (Georgia) | 5,026.96 mi (8,090.12 km) |
| Cave to Johnson City (New York) | 4,335.67 mi (6,977.59 km) |
| Cave to Johnson City (Tennessee) | 4,847.11 mi (7,800.67 km) |
| Cave to Johnston (Iowa) | 5,078.66 mi (8,173.32 km) |
| Cave to Johnstown (Colorado) | 5,557.88 mi (8,944.55 km) |
| Cave to Johnstown (Pennsylvania) | 4,532.50 mi (7,294.36 km) |
