High Quality Content by WIKIPEDIA articles! Cheboksary (Russian: Чебокса?ры; Chuvash: Шупашкар, ?upa?kar) is the capital city of the Chuvash Republic, Russia and a port on the Volga River. Population: 453,645 (2010 Census); 440,621 (2002 Census); 419,592 (1989 Census). A satellite city of Novocheboksarsk is located about 6 kilometers (3.7 mi) east of Cheboksary.