Israel
total: 853 km
standard gauge: 853 km 1.435-m gauge (2005)
Italy
total: 19,459 km
standard gauge: 18,037 km 1.435-m gauge (11,354 km electrified)
narrow gauge: 123 km 1.000-m gauge (122 km electrified); 1,299 km
0.950-m gauge (161 km electrified) (2005)
Jamaica
total: 272 km
standard gauge: 272 km 1.435-m gauge
note: 207 of these km belonging to the Jamaica Railway Corporation
had been in common carrier service until 1992 but are no longer
operational; 57 km of the remaining track is privately owned and
used by ALCAN to transport bauxite (2003)
Japan
total: 23,556 km
standard gauge: 3,204 km 1.435-m gauge (3,204 km electrified)
narrow gauge: 77 km 1.372-m gauge (77 km electrified); 20,264 km
1.067-m gauge (13,280 km electrified); 11 km 0.762-m gauge (11 km
electrified) (2005)
Jordan
total: 505 km
narrow gauge: 505 km 1.050-m gauge (2005)
Kazakhstan
total: 13,700 km
broad gauge: 13,700 km 1.520-m gauge (3,700 km electrified) (2005)
Kenya
total: 2,778 km
narrow gauge: 2,778 km 1.000-m gauge (2005)
Korea, North
total: 5,214 km
standard gauge: 5,214 km 1.435-m gauge (3,500 km electrified) (2005)
Korea, South
total: 3,472 km
standard gauge: 3,472 km 1.435-m gauge (1,361 km electrified) (2005)
Kyrgyzstan
total: 470 km
broad gauge: 470 km 1.520-m gauge (2005)