Vurnarsky District (Russian: Вурна́рский райо́н; Chuvash: Вăрнар районӗ) is an administrative and municipal district (raion), one of the twenty-one in the Chuvash Republic, Russia. It is located in the center of the republic and borders with Alikovsky and Krasnoarmeysky Districts in the north, Kanashsky District in the east, Ibresinsky District in the south, and with Shumerlinsky District in the west. The area of the district is 1,012.6 square kilometers (391.0 sq mi). Its administrative center is the urban locality (an urban-type settlement) of Vurnary. Population: 35,850 (2010 Census); 41,417 (2002 Census); 44,864 (1989 Census). The population of Vurnary accounts for 28.1% of the district's total population.