Kolosovsky District

Kolosovsky District (Колосо́вский райо́н) is an administrative and municipal district (raion), one of the thirty-two in Omsk Oblast, Russia. It is located in the center of the oblast. The area of the district is 4700 km2. Its administrative center is the rural locality (a selo) of Kolosovka. Population: 12,803 (2010 Census); The population of Kolosovka accounts for 41.5% of the district's total population.