In Great Britain, 2,585 stations were served by mainline rail services as at 31 March 2024, including seven new stations which opened during the year.

A total of 1,610 million passenger journeys were made between April 2023 and March 2024. This is an increase of 16% from the 1,380 million journeys made in the previous year (April 2022 to March 2023).

Most and least used stations

The most used station in the latest year was London Liverpool Street with an estimated 94.5 million entries and exits. It was also the most used station in the previous year (April 2022 to March 2023), after the opening of the central section of the Elizabeth line which led to a large increase in its entries and exits. London Paddington, which also has Elizabeth line services, was the second busiest station. London Waterloo, which had been the busiest station in 17 of the previous 18 years prior to the Elizabeth line opening, was fourth busiest.

Birmingham New Street was the busiest station outside of London with 33.3 million entries and exits.

Of stations that were open during the year, Denton in Greater Manchester was the least used with 54 entries and exits.

I have downloaded the data and put up a table including all the stations in GWR^▸ (Great Western Railway) land for the last  4 years at
https://www.greatwesternrailway.info/statnav.html

Great minds .... I was in the process of doing that as you wrote.   The station name column was too wide and have doctored Heathrow taking out "(Rail Station Only)".   I may add - but in the morning now's I have ANOTHER council meeting - a column to indicate the percentage of pre-covid we're at.