Most Populous Island Cities

Can you name the most populous urban areas that are on islands?
Agglomerations must be completely on islands
Australia is NOT an island
According to citypopulation.de
Quiz by
Forty1
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Last updated: March 28, 2026
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First submittedMarch 27, 2026
Times taken22
Average score70.0%
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Population
Answer
41.3m
Tokyo
29.8m
Jakarta
27.1m
Manila
17.7m
Osaka
15.4m
London
10.5m
Nagoya
10.2m
Taipei
8.1m
Singapore
7.0m
Bandung
6.3m
Manchester
6.0m
Surabaya
5.0m
Colombo
4.7m
Montreal
4.3m
Medan
4.1m
Birmingham
4.0m
Santo Domingo
3.3m
Antananarivo
3.1m
Port-au-Prince
2.9m
Fukuoka
2.9m
Haikou
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8 Comments
+1
Level 90
Mar 27, 2026
I think you're missing at least Tokyo, Osaka, and Nagoya.
+1
Level 32
Mar 28, 2026
My bad, I fixed that, so there should be no more mistakes
+1
Level 62
Mar 28, 2026
Montreal?
+1
Level 32
Mar 28, 2026
Montreal is on Island of Montreal in the St. Lawrence river.
+1
Level 70
Mar 28, 2026
Antananarivo
+1
Level 32
Mar 28, 2026
I have added Antananarivo, thank you for telling me
+1
Level 82
Mar 28, 2026
Mumbai? Hong Kong? Xiamen?
+1
Level 32
Mar 28, 2026
Hong Kong is not on an island, and Mumbai's and Xiamen's urban area expand off the islands that they are on.