The chart above shows the number of subway riders in each region. The Western EU has more subway riders than all other regions combined.
- The difference between the region with the most subway riders, the Western EU, and the region with the least, the Northern EU, is 4,773,450,000 riders.
- The Western EU has 10.86 times the subway riders that the Northern EU does.
- The Paris Metro and the London Underground each have more riders, 1,518.6 million and 1,378 million respectively, than each of the Eastern and Northern EU.
- The Madrid Metro (626.4 million), Milan Metro (569.5 million), and the Berlin U-Bahn (563 million) each have more riders than the Northern EU.
- Data is from 2017 except for the Genoa and Rome Metros which are from 2012, the Nuremberg U-Bahn and Athens and Turin Metros which are from 2015, the French, Polish, Romanian, and United Kingdom subways which are from 2016, and the Catania Metro which is from 2018.
- Greece is currently working on building a subway system for Thessaloniki.
- All figures are rounded to the nearest hundredth.
- The Western EU consists of Germany, United Kingdom, France, Netherlands, Belgium, Austria, Ireland, and Luxembourg.
- The Southern EU consists of Italy, Spain, Portugal, Greece, Cyprus, and Malta.
- The Eastern EU consists of Poland, Czech Republic, Romania, Hungary, Slovakia, Bulgaria, Croatia, Slovenia, Lithuania, Latvia, and Estonia.
- The Northern EU consists of Sweden, Denmark, and Finland.
The Western EU accounts for over half of all subway riders in the EU at 55.10%. It, with the Southern EU make up over four-fifths of the subway riders in the EU at 81.28%.
The Paris Metro makes up 28.89% of the Western EU's total riders, the Madrid Metro makes up 25.08% of the Southern EU's total, the Stockholm Metro accounts for 72.93% of the Northern EU's total, and the Prague Metro accounts for 33.45% of the Eastern EU's total riders.
Wikipedia. 2019. "List of Metro Systems." Accessed February 24, 2019. https://en.wikipedia.org/wiki/List_of_metro_systems.