Kusinsky District is an administrative and municipal district (raion), one of the twenty-seven in Chelyabinsk Oblast, Russia. It is located in the northwest of the oblast. The area of the district is 1,513 square kilometers (584 sq mi).} Its administrative center is the town of Kusa. Population: 29,392 (2010 census); 32,738 ; 37,100 (1989 Soviet census). The population of Kusa accounts for 63.9% of the district's total population.