The sub-prefectures of the department are Bogofa, Kakpin, Koutouba, Nassian, and Sominassé.

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

At this time, Nassian Department became part of Bounkani Region in Zanzan District.

[5] The seventeen villages of the sub-prefecture of Nassian and their population in 2014 are:[5]

This Zanzan District location article is a stub.