Located in the south of Ilam province, Mehran is at a distance of 791 kilometers from Tehran. Mehran has an arid and semi-arid climate. It is situated on the banks of Konjan Cham River close to the Iraq border. In the past Mehran was known as Mansour Abad but in 1930 it was named Mehran by the approval of Iranian Academy. In recent years Mehran was paid due attention and has developed. This city was occupied and severely damaged during imposed Iraq war and was reconstructed after the war.
In May 1986, during the Iran–Iraq War, Iraqi forces captured Mehran, on the western plain of the Zagros Mountains in Ilam Province, and pushed eastward to the mountain base. Mehran occupied an important position on the major north-south road, close to the border on the Iranian side. Saddam Hussein offered to exchange the captured city for the desired territory of Al-Faw. The occupation lasted only one month, however.