It borders Iran to the south, as well as the economic regions of Shirvan-Salyan, Central Aran, and Karabakh.

The region consists of the districts of Beylagan, Imishli, Saatly, and Sabirabad.

[2] It has an area of 5,670 square kilometres (2,190 sq mi).

[1] Mil-Mughan Economic Region was established on 7 July 2021 as part of a reform of the economic region system of Azerbaijan.

Its territory was part of the larger Aran Economic Region before 2021.