From Data Publica [French]:
If you click on the map, you can hover over the stations and see the data. It’s in French, but it’s simple: the station name is in blue at the top-right, followed by the number of station entries per year, the rank among all stations, and the lat/long coordinates.
I’m aware that I relentlessly compare other cities to Paris, but it is a city I’ve lived in and know well. It’s also easy for me to get news and data about Paris (and other cities in France) because I speak French. For comparison’s sake, because it’s fun:
The busiest station is Gare du Nord, which is also Europe’s busiest railway station. National and international trains serve France and several nearby countries via high-speed trains, Intercitiés and TER trains serve regional destinations, Transilien and RER trains serve the suburbs, and Métro lines 4 and 5 serve Paris and a few northeastern suburbs. Gare du Nord’s RER and Métro lines are served on separate tracks from the other trains, and are included in the yearly count of 41,146,629 passengers in 2011 despite serving only 4 total lines (Métro 4, 5, and RER B, D). By comparison, Chicago’s busiest station, Lake, serves the Red line (the busiest line) with 5,534,101 passengers in 2011. The next-busiest, Clark/Lake (elevated), serves the Green*, Orange, Purple, Pink, and Brown lines with 5,373,478 passengers in 2011. New York City’s busiest station, 42 St–Times Square, serving the N, Q, R, 1, 2, 3, 7, A, C, E, and shuttle trains, serves 60,604,822 passengers annually.
Even my former “most-visited” stations, George V (line 1) and Bibliothèque François-Mitterand (line 14, RER C), had 6,192,999 and 15,826,727 boardings in 2011, respectively. It is worth noting that, even with the über-modernization of line 1 to fully automatic, driverless service on line 1, neither of these stations ever felt full, even during rush periods. Crowding was very uncommon on line 14 since it was already driverless since 1998.
Obviously, Paris and Chicago are two very different systems with very different geographies and mindsets about car ownership and transportation usage. It is still amusing to note the relative crowding of Chicago’s busiest station, Lake (Red line), at rush hour and compare it to rush-hour conditions on other, much busier stations.
*Despite being a stop on the Green line, it is not listed as a line served by the Clark/Lake elevated station on the 2011 Ridership Report published by the CTA, so I’m not sure if the number is completely accurate.