In which city does the action of the play "Oedipus Rex" take place?

The action of "Oedipus Rex" takes place in Thebes, which is a significant city in Greek mythology and drama. Thebes is the backdrop for the tragic events that unfold in the play, as it is the city that Oedipus rules as king. Thebes is central to the themes of fate, identity, and the consequences of one's actions, making it a crucial setting for the narrative. The events surrounding the plague and the search for the truth about the murder of the former king, Laius, all occur within this city, emphasizing its importance in the story. Therefore, since "Oedipus Rex" revolves around the struggle for power and the unraveling of Oedipus's identity, Thebes serves as the perfect stage for this Greek tragedy.