Muromtsevsky District is an administrative and municipal district (raion), one of the thirty-two in Omsk Oblast, Russia. It is located in the east of the oblast. The area of the district is 6,700 square kilometers (2,600 sq mi). Its administrative center is the urban locality of Muromtsevo. Population: 23,795 ; 28,380 (2002 Census); 31,935 (1989 Soviet census). The population of Muromtsevo accounts for 45.3% of the district's total population.