under 914 m: 18 (2000 est.)

Jamaica: total: 24

914 to 1,523 m: 2

under 914 m: 22 (2000 est.)

Jan Mayen: total: 1

1,524 to 2,437 m: 1 (2000 est.)

Japan: total: 31

914 to 1,523 m: 4

under 914 m: 27 (2000 est.)

Jordan: total: 3