The department houses the political capital of Ivory Coast, Yamoussoukro, and is one of two departments in the Yamoussoukro Autonomous District.
[3] The department is divided into two sub-prefectures, Yamoussoukro and Kossou.
[4] In 1997, regions were introduced as new first-level subdivisions of Ivory Coast; as a result, all departments were converted into second-level subdivisions.
Yamoussoukro Department was included in Lacs Region.
[4] In 2011, districts were introduced as new first-level subdivisions of Ivory Coast.