| Area (sq km) | Country | Answer | % Correct |
|---|---|---|---|
| 36,782 | Japan | Kyūshū | 100%
|
| 1,435 | United States | Kauaʻi | 86%
|
| 4,374 | Australia | Kangaroo Island | 71%
|
| 9,311 | United States | Kodiak Island | 71%
|
| 1,121 | Australia | King Island | 57%
|
| 13,111 | Canada | King William Island | 57%
|
| 8,812 | Russia | Komsomolets Island | 57%
|
| 24,000 | Russia | Kotelny Island | 57%
|
| 1,962 | United States | Kuiu | 29%
|
| 4,968 | Russia | Kolguyev Island | 14%
|
| 2,002 | Russia | Krasnoslobodsk | 14%
|
| 2,813 | United States | Kupreanof Island | 14%
|
| 2,404 | Russia | Karaginsky Island | 0%
|
| 1,840 | Australia | K'gari | 0%
|
| 1,384 | None (Antarctica) | King George Island | 0%
|
| 1,723 | Indonesia | Kobroor | 0%
|
| 1,489 | Russia | Kunashir Island | 0%
|