Jersey: lowest point: Atlantic Ocean 0 m
highest point: unnamed location 143 m
Johnston Atoll: lowest point: Pacific Ocean 0 m
highest point: Summit Peak 5 m
Jordan: lowest point: Dead Sea -408 m
highest point: Jabal Ram 1,734 m
Juan de Nova Island: lowest point: Indian Ocean 0 m
highest point: unnamed location 10 m
Kazakhstan: lowest point: Vpadina Kaundy -132 m
highest point: Khan Tangiri Shyngy (Pik Khan-Tengri) 6,995 m