Kotobi  Kotobi is a town in east-central Ivory Coast. It is a sub-prefecture of Arrah Department in Moronou Region, Lacs District. Kotobi was a commune until March 2012, when it became one of 1126 communes nationwide that were abolished. In 2014, the population of the sub-prefecture of Kotobi was 25,674 . The 4 villages of the sub-prefecture of Kotobi and their population in 2014 are: