Reading & Leeds Festivals (combined)

Only a combined figure for both sites is available, so this is one entry; the two sites share a lineup. The figure is 'more than half a million', attributed to organiser Festival Republic. It is most likely total visits over 27–30 Aug, not unique people. No per-site 2026 figures; Wikipedia gives 2011 capacities of Reading 87,000 and Leeds 75,000, and Reading 105,000 daily in 2019.