Sunsky District is an administrative and municipal district (raion), one of the thirty-nine in Kirov Oblast, Russia. It is located in the center of the oblast. The area of the district is 1,260 square kilometers (490 sq mi). Its administrative center is the urban locality of Suna. Population: 6,784 (2010 Census); 8,636 ; 10,150 (1989 Soviet census). The population of Suna accounts for 32.4% of the district's total population.