evidence: Sipilou Department is a department of Tonkpi Region in Montagnes District, Ivory Coast. In 2021, its population was 73,109 and its seat is the settlement of Sipilou. The sub-prefectures of the department are Sipilou and Yorodougou. Sipilou Department was created in 2012 by dividing Biankouma Department.[3][4]