As of 2023, the Death Note manga has sold over 30 million copies worldwide, making it one of the best-selling manga series of all time. Additionally, the anime adaptation has been viewed by millions of people across various streaming platforms and television channels.
It is difficult to provide an exact figure for the number of fans and watchers of Death Note, but it is safe to say that the series enjoys an extensive and dedicated fan base. The series' popularity is also evident from the numerous fan communities, discussions, and fan art related to Death Note found online.