Sisak is a city in central Croatia. The city's population in 2011 was 33,049, with a total of 49,699 in the administrative region and it is also the administrative centre of the Sisak-Moslavina county. Sisak is located at the confluence of the Kupa, Sava, and Odra rivers, 57 km2 (35 mi) southeast of the Croatian capital Zagreb
