Jersey
about two-thirds the size of Washington, DC
Jordan
slightly smaller than Indiana
Kazakhstan
slightly less than four times the size of Texas
Kenya
slightly more than twice the size of Nevada
Kiribati
four times the size of Washington, DC
Korea, North
slightly smaller than Mississippi
Korea, South
slightly larger than Indiana
Kosovo
slightly larger than Delaware
Kuwait
slightly smaller than New Jersey
Kyrgyzstan
slightly smaller than South Dakota