- Dysart City is a fictional city that appears in J.K. Rowling's Harry Potter series. It is located in Scotland, near the Highlands, and is home to the renowned magical school, Hogwarts. Dysart City is known for its rich history and magical landmarks, such as the Hogwarts Castle and the Forbidden Forest. The city also has various magical shops and businesses, such as the famed Diagon Alley. In the books, Dysart City serves as an important setting for the adventures of Harry Potter and his friends as they navigate the wizarding world.