Wrestle Kingdom attendance since 2016:
- 2016: 25,204
- 2017: 26,192
- 2018: 34,995
- 2019: 38,162
- 2020: Night 1: 40,008; Night 2: 30,363
- *2021: Night 1: 12,689; Night 2: 7,801
- *2022: Night 1: 12,047; Night 2: 6,379
- 2023: 26,085
- 2024: 27,422
*Restricted capacity due to pandemic
New Japan is believed to have started announcing accurate attendances on its official website beginning in mid-2015. I tend to believe these numbers reflect tickets distributed (sales + comps).
Brandon Thurston has written about wrestling business since 2015. He operates and owns Wrestlenomics.