Angarsk is a city and the administrative center of Angarsky District of Irkutsk Oblast, Russia, located on the Kitoy River, 51 kilometers fro…Angarsk is a city and the administrative center of Angarsky District of Irkutsk Oblast, Russia, located on the Kitoy River, 51 kilometers from Irkutsk, the administrative center of the oblast. Population: 221,296 ; 233,567 ; 247,118 ; 265,835.