The Collines region is a department in central Bénin, bordering the departments of Plateau, Borgou, Zou and Donga. Its population is 716,558 inhabitants (2013), with a density of 51 inhabitants/km², and an area of 1,393,100 hectares, or 13,931.51 km². The department is primarily populated by Idaasha, Isha, Nagots, Yorubas, Shabè, Mahi, and Fulani peoples. The communes of the Collines Department The Collines consist of 6 (six) communes: Bantè, Dassa-Zoumè (the prefecture), Glazoué, Ouèssè, Savalou and Savè.