 The town has the special feature of having changed its name in 1922 from the ancient name of Caccavone to the current name Poggio Sannita, which is derived from the ancient Samnite civilization that once populated the area.The previous name probably refers to the fact that in ancient times the town was the site of production of the "caccavo", a sort of big pot or pots used by farmers for milk coagulation, that still remains present in the coat of arms of the municipality.The village is on a hillside high and overlooks the valley of Verrino near the natural boundary with Abruzzo.