Isle of Man
slightly more than three times the size of Washington, DC

Israel
slightly smaller than New Jersey

Italy
slightly larger than Arizona

Jamaica
slightly smaller than Connecticut

Jan Mayen
slightly more than twice the size of Washington, DC

Japan
slightly smaller than California

Jarvis Island
about eight times the size of The Mall in Washington,
DC

Jersey
about two-thirds the size of Washington, DC

Johnston Atoll
about 4.7 times the size of The Mall in Washington, DC

Jordan
slightly smaller than Indiana