Aşkale is a municipality and district of Erzurum Province, Turkey. Its area is 1,507 km, and its population is 21,494. The mayor is Şenor Polat. …Aşkale is a municipality and district of Erzurum Province, Turkey. Its area is 1,507 km, and its population is 21,494. The mayor is Şenor Polat. The majority of the district is populated by Turks and a minority by Kurds, Karapapakhs and Meskhetian Turks.