Buckland City is a fictional city in the television series "The Grim Adventures of Billy and Mandy." It is the main setting for the show and is depicted as a typical American city with various locations such as schools, homes, parks, and supernatural realms. The city is known for its strange and supernatural occurrences, often involving the main characters Billy, Mandy, and Grim, who is a Grim Reaper. Despite the bizarre events and characters, Buckland City is portrayed as a regular city with its own residents and day-to-day life.