[2] At the time of its dissolution, Lagunes Region was divided into seven departments: Abidjan, Alépé, Dabou, Grand-Lahou, Jacqueville, Sikensi, and Tiassalé.

Lagunes Region was traversed by a northwesterly line of equal latitude and longitude.

Lagunes Region was abolished as part of the 2011 administrative reorganisation of the subdivisions of Ivory Coast.

The territory of the departments of Sikensi and Tiassalé were combined with the former Agnéby Region's Agboville Department to form the second-level Agnéby-Tiassa Region in Lagunes District.

The territory of Alépé Department was combined with Agnéby Region's Adzopé, Akoupé and Yakassé-Attobrou Departments to create La Mé Region in Lagunes District.