Pervouralsk is a city in Sverdlovsk Oblast, Russia, located on the Chusovaya River 39 kilometers (24 mi) west of Yekaterinburg, the administrative center of the oblast. Population: 124,528 (2010 census); 132,277 (2002 census); 142,193 (1989 Soviet census); 122,000 (1974); 90,000 (1959); 44,000 (1939).