🏘️ Ostrovsky District, Kostroma Oblast

Ostrovsky District is an administrative and municipal district (raion), one of the twenty-four in Kostroma Oblast, Russia. It is located in the southwest of the oblast. The area of the district is 2,720 square kilometers (1,050 sq mi). Its administrative center is the rural locality of Ostrovskoye. Population: 9,110 (2021 census); 12,787 (2010 census); 14,758 ; 17,141 (1989 Soviet census). The population of Ostrovskoye accounts for 46.3% of the district's total population.