Tarusa (Russian:Тару́са), also known as Tarussa (Тару́сса), 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 (47mi) northeast of Kaluga, the administrative center of the oblast. Population: 9,660(2010 Census);9,893(2002 Census);8,795(**** Census).