Harry Potter and the Deathly Hallows sold 8.3 million copies in the United States during its first 24 hours.
The seventh and final Harry Potter novel was released on 21 July 2007. Its launch was one of the largest events in publishing history, with bookstores opening at midnight and fans organizing celebrations around the world. Scholastic, the American publisher, reported the first-day U.S. figure of 8.3 million copies.
The book’s sales reflected intense anticipation because it concluded Harry’s central conflict with Lord Voldemort. Readers also wanted answers about major mysteries, character fates, and the meaning of the title’s three magical objects.
This figure refers specifically to the United States and the first 24 hours. It should not be confused with worldwide first-day sales or the novel’s eventual total sales over its full publication history.