Pervouralsk (Russian:Первоура́льск, lit. the first in the Urals) is a city in Sverdlovsk Oblast, Russia, located on the Chusovaya River (Kama's tributary) 39 kilometers (24mi) west of Yekaterinburg, the administrative center of the oblast. Population: 124,528(2010 Census);132,277(2002 Census);142,193(**** Census); 122,000 (1974); 90,000 (1959); 44,000 (1939).