The "arrondissement" of Tournon-sur-Rhone is bordered to the north by the Loire department, to the northeast by the Isere department, to the east by the Drome department, to the south by the "arrondissement" of Arrondissement of Privas, to the southwest by the "arrondissement" of Arrondissement of Largentiere and to the west by the Haute-Loire department.
