Clermont-l'Hérault is a commune in the Hérault department in southern France. Chief town of the Canton, Clermont-l'Hérault is located abou…Clermont-l'Hérault is a commune in the Hérault department in southern France. Chief town of the Canton, Clermont-l'Hérault is located about 40 km west of Montpellier, halfway between the Mediterranean Sea to the south and the Cévennes National Park to the north.