The latest statistics, based on metrobits.org's data, last updated 8 January 2023
Distribution
Countries with more metro systems are blown up in this distorted fun map (cartogram). Shades of colour correspond with the number of metros per area. Created using Mapresso and metrobits.org's data.
Our planet has now 243metro systems, according to Metrobits' criteria. A majority of 119 are called metros and 22 subways, the rest has other labels, such as MRT, Metrorail, or U-Bahn. The first line opened1863 in London. Today, 888lines worldwide with a combined length of 20,848 km serve 16,145stations, including 1,622 transfer stations, which calculates to 1.37 kmaverage station distance.
How the number of metro systems grew since the world's first ones opened in London in 1863 and in Chicago in 1892. Graph generated from the opening dates in the World Metro Database.
This page: http://mic-ro.com/metro/metrostats.html