The northern boundary is with the municipality of Girona; the southern is with Riudellots de la Selva and Campllong; the east with Quart and Llambilles; and the west with Vilablareix and Aiguaviva.
Some of the western municipalities that remained in Teruel Province, Aguaviva (Aiguaviva de Bergantes), Belmonte de San José (Bellmunt de Mesquí), La Cañada de Verich (La Canyada de Beric), La Cerollera (La Sorollera), La Codoñera (La Codonyera), La Ginebrosa and Torrevelilla (La Torre de Vilella) were later segregated from Matarranya and included in the Bajo Aragón comarca.