List of islands of New Zealand
Listed by size

Rank
English name
Māori name
km2
% of New Zealand Area
Population
1
South Island
Te Waipounamu, Te Wahi Pounamu, Te Waka-a-Māui, Te Waka o Aoraki
151,215
56.2%
1,135,500
2
North Island
Te Ika-a-Māui
113,729
42.3%
3,749,200
3
Stewart Island
Rakiura, Te Punga o Te Waka-a-Māui
1,683
0.6%
400
4
Chatham Island
Rekohu (Moriori); Wharekauri (Māori)
900
0.3%
600
5
Auckland Island
Motu Maha
510
0.2%
0
6
Great Barrier Island
Aotea
285
0.1%
850
7
Resolution Island
Taumoana
208.87
0.1%
0
8
D'Urville Island
Rangitoto Ki Te Tonga
150
<0.1%
About 52
9
Campbell Island
Motu Ihupuku
115
<0.1%
0
10
Adams Island
-
100
<0.1%
0
11
Waiheke Island
Waiheke
92
<0.1%
9,770
12
Secretary Island
Rangitoa
81.4
<0.1%
0
13
Arapaoa Island
Arapaoa
75
<0.1%
50
14
Pitt Island
Rangiaotea (Moriori) or Rangiauria (Maori)
62
<0.1%
38
15
Matakana Island
Matakana
60
<0.1%
225
16
Raoul Island
Rangitahua
29.4
<0.1%
6
17
Little Barrier Island
Hauturu
28
~0.0%
0
18
Rangitoto Island
Rangitoto
23.1
~0.0%
0
19
Antipodes Island
-
20
~0.0%
0
20
Kapiti Island
Kapiti
19.7
~0.0%
0
21
Kawau Island
Kawau
19
~0.0%
81
22
Long Island, Southland
Motu Roa
18.99
~0.0%
0
23
Cooper Island
Ure Toto
17.79
~0.0%
0
24
Ponui Island
Ponui
17.7
~0.0%
0
25
Great Mercury Island
Ahuahu
17.2
~0.0%
0
26
Ruapuke Island
Ruapuke
16
~0.0%
0
27
Motutapu Island
Motutapu
15.1
~0.0%
0
28
Codfish Island
Whenua Hou
14
~0.0%
0
29
Mayor Island
Tuhua
13
~0.0%
0
30
Coal Island
Te Puka-Hereka
11.6
~0.0%
0
31
Anchor Island
Puke Nui
11.37
~0.0%
0
32
Motiti Island
Motiti
10
~0.0%
27
33
Big South Cape Island
Taukihepa
9.4
~0.0%
0

Question: How large is Great Barrier Island?
Answer: Great Barrier Island is the sixth-largest island with an area of 285 square kilometres, or 0.1% of New Zealand area.