Kvarkensky District () is an administrativeLaw #1370/276-IV-OZ and municipalLaw #2367/495-IV-OZ district (raion), one of the thirty-five in Orenburg Oblast, Russia. The area of the district is . Its administrative center is the rural locality (a selo) of Kvarkeno. Population: 18,655 (2010 Census); The population of Kvarkeno accounts for 21.0% of the district's total population.
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