Penzhinsky District (Russian: Пе́нжинский райо́н) is an administrative and municipal district (raion) of Koryak Okrug of Kamchatka Krai, Russia, one of the eleven in the krai. It is located in the northwest of the krai. The area of the district is 116,086 square kilometers (44,821 sq mi). Its administrative center is the rural locality (a selo) of Kamenskoye. Population: 2,340 (2010 Census); 2,990 (2002 Census); 5,301 (1989 Census). The population of Kamenskoye accounts for 28.0% of the district's total population.