| Idrija to Joliet (Illinois) | 4,730.18 mi (7,612.49 km) |
| Idrija to Jonesboro (Arkansas) | 5,103.05 mi (8,212.57 km) |
| Idrija to Joplin (Missouri) | 5,187.13 mi (8,347.88 km) |
| Idrija to Joppatowne (Maryland) | 4,356.25 mi (7,010.71 km) |
| Idrija to Juana Díaz (Puerto Rico) | 4,880.46 mi (7,854.34 km) |
| Idrija to Junction City (Kansas) | 5,174.39 mi (8,327.38 km) |
| Idrija to Juneau (Alaska) | 4,994.75 mi (8,038.27 km) |
| Idrija to Jupiter (Florida) | 5,090.90 mi (8,193.02 km) |
| Idrija to Jupiter Farms (Florida) | 5,095.52 mi (8,200.44 km) |
| Idrija to Jurupa Valley (California) | 6,136.40 mi (9,875.58 km) |
| Idrija to Justice (Illinois) | 4,707.40 mi (7,575.83 km) |
| Idrija to Kahului (Hawaii) | 7,777.91 mi (12,517.34 km) |
| Idrija to Kailua (Hawaii) | 7,751.75 mi (12,475.23 km) |
| Idrija to Kalamazoo (Michigan) | 4,597.68 mi (7,399.26 km) |
| Idrija to Kalispell (Montana) | 5,221.42 mi (8,403.07 km) |
