Biggest World Cities Starting With B

Can you name the 15 biggest urban areas in the world starting with B?
2026 Population
By urban area
Quiz by
Forty1
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Last updated: March 18, 2026
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First submittedMarch 18, 2026
Times taken33
Average score66.7%
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Population
Answer
20.7m
Beijing
18.6m
Bangkok
15.2m
Buenos Aires
14.3m
Bengaluru
10.5m
Bogota
9.7m
Bandung
7.8m
Baghdad
5.3m
Barcelona
5.2m
Belo Horizonte
4.7m
Berlin
4.4m
Boston
4.3m
Busan
4.2m
Bamako
3.9m
Brasilia
3.5m
Baku
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