The sub-prefectures of the department are Ahouanou, Bacanda, Ebonou, Grand-Lahou, and Toukouzou.

Grand-Lahou Department was included in Lagunes Region.

In 2011, districts were introduced as new first-level subdivisions of Ivory Coast.

At this time, Grand-Lahou Department became part of Grands-Ponts Region in Lagunes District.

This Lagunes District location article is a stub.