| Rank | Size (km²) | Answer | % Correct |
|---|---|---|---|
| 2 | 113,729 | North Island | 98%
|
| 1 | 151,215 | South Island | 98%
|
| 3 | 1,746 | Stewart Island | 47%
|
| 4 | 900 | Chatham Island | 38%
|
| 5 | 510 | Auckland Island | 29%
|
| 11 | 92 | Waiheke Island | 29%
|
| 6 | 285 | Great Barrier Island | 27%
|
| 9 | 115 | Campbell Island | 14%
|
| 8 | 150 | D'Urville Island | 13%
|
| 14 | 62 | Pitt Island | 10%
|
| 13 | 75 | Arapaoa Island | 9%
|
| 7 | 208 | Resolution Island | 8%
|
| 15 | 60 | Matakana Island | 7%
|
| 10 | 100 | Adams Island | 5%
|
| 12 | 81 | Secretary Island | 4%
|