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World's Largest Subway Systems

Below is a list of the largest subway systems in the world by annual ridership. The table also provides the passenger route length of each system and the date the system opened.

CityDate system
opened
  Number of
 riders (year)
Length
(km)
Tokyo19273.1 billion195.1
Seoul 1974 2.5 billion508.2
Beijing19812.5 billion 442
Moscow19352.4 billion 313
Shanghai19952.3 billion 437
Guangzhou19971.8 billion215
New York City19041.7 billion337
Mexico City19691.6 million 226
Hong Kong19791.5 billion174
Paris19001.5 billion 218

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