Busiest Metro Systems in the World

Try to name every Metro/Subway system that receives more than 500 million annual journeys.

Hint: The majority of these cities are located in East Asia

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Last updated: February 23, 2026

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First submitted	September 19, 2024
Times taken	1,276
Average score	75.7%
Rating	4.89
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Ridership	Continent	Answer
3.774 B	Asia	Shanghai Metro
3.621 B	Asia	Beijing Subway
3.461 B	Asia	Tokyo Metro + Toei Subway
3.255 B	Asia	Guangzhou Metro
3.102 B	Asia	Shenzhen Metro
2.403 B	Asia	Seoul Metropolitan Subway
2.289 B	Europe	Moscow Metro
2.209 B	Asia	Chengdu Metro
2.040 B	North America	New York City Subway
2.032 B	Asia	Delhi Metro
1.770 B	Asia	Hong Kong MTR
1.476 B	Europe	Paris Metro
1.470 B	Asia	Hangzhou Metro
1.467 B	Asia	Wuhan Metro
1.460 B	Africa	Cairo Metro
1.417 B	Asia	Chongqing Rail Transit
1.406 B	Asia	Xi’an Metro
1.256 B	South America	São Paulo Metro
1.240 B	Asia	Singapore MRT

Ridership	Continent	Answer
1.216 B	Europe	London Underground
1.172 B	North America	Mexico City Metro
1.094 B	Asia	Nanjing Metro
1.032 B	Asia	Changsha Metro
935 M	Asia	Osaka Metro
820 M	Asia	Tehran Metro
767 M	Asia	Taipei Metro
715 M	Europe	Madrid Metro
700 M	Asia	Suzhou Rail Transit
697 M	Asia	Zhengzhou Metro
689 M	Europe	Istanbul Metro
686 M	Europe	Saint Petersburg Metro
674 M	Asia	Tianjin Metro
658 M	Asia	Shenyang Metro
640 M	South America	Santiago Metro
554 M	Europe	Berlin U-Bahn
531 M	Asia	Qingdao Metro
524 M	Asia	Hefei Metro

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4 Comments

Level 83

Sep 23, 2024

Great quiz!

Level 78

Dec 4, 2025

Could you add a couple of type-ins? Just Mexico is usually accepted for Mexico City. I also missed Shenzhen and Sao Paulo because I misspelled them as Shenzen and Sao Paolo (I know I should learn how to spell, but these spellings are usually accepted here).

Level 72

Dec 6, 2025

Good idea, added them

Level 73

Apr 14, 2026

Great quiz, nominated!