Igrinsky District is an administrative and municipal district (raion), one of the twenty-five in the Udmurt Republic, Russia. It is located in the center of the republic. The area of the district is 2,266.9 square kilometers (875.3 sq mi). Its administrative center is the rural locality of Igra. Population: 38,194 (2010 Census); 42,850 ; 45,869 (1989 Soviet census). The population of Igra accounts for 54.3% of the district's total population.