Manturovo is a town in Kostroma Oblast, Russia, located on the right bank of the Unzha River, 260 kilometers northeast of Kostroma, the adminiā¦Manturovo is a town in Kostroma Oblast, Russia, located on the right bank of the Unzha River, 260 kilometers northeast of Kostroma, the administrative center of the oblast. Population: 13,043 ; 17,479 ; 19,457 ; 22,452 ; 22,000.