Beylagan region is located in the southwest of the Mil plain. The center is the city of Beylagan. The district has 1 city, 6 city-type settlements, and 34 villages.Beylagan region is one of the important agricultural regions of the republic. In accordance with the historical sources, Beylagan was founded in the 5th century. In the 13th century, the city was completely destroyed by Mongol invasions.