Syzran is the third largest city in Samara Oblast, Russia, located on the right bank of Saratov Reservoir of the Volga River. Population: 165,7…Syzran is the third largest city in Samara Oblast, Russia, located on the right bank of Saratov Reservoir of the Volga River. Population: 165,725 ; 178,750 ; 188,107 ; 174,335. Founded in 1683 as a fortress, Syzran grew into an important trading center and was granted town status in 1796. One tower from the 17th-century fortress still stands. It is also the site of Syzran Bridge, once the longest bridge in Europe.