Tarusa, also known as Tarussa, is a town and the administrative center of Tarussky District in Kaluga Oblast, Russia, located on the left bank o…Tarusa, also known as Tarussa, is a town and the administrative center of Tarussky District in Kaluga Oblast, Russia, located on the left bank of the Oka River, 76 kilometers northeast of Kaluga, the administrative center of the oblast. Population: 9,918 ; 9,660 ; 9,893 ; 8,795.