Bonoua is a town in south-eastern Ivory Coast. It is a sub-prefecture and commune of Grand-Bassam Department in Sud-Comoé Region, Co…Bonoua is a town in south-eastern Ivory Coast. It is a sub-prefecture and commune of Grand-Bassam Department in Sud-Comoé Region, Comoé District. In 2021, the population of the sub-prefecture of Bonoua was 118,388.