Kazan is the capital and largest city of Tatarstan, Russia. The city lies at the confluence of the Volga and the Kazanka rivers, covering an area of 425.3 square kilometres, with a population of over 1.3 million residents, and up to nearly 2 million residents in the greater metropolitan area. Kazan is the fifth-largest city in Russia, being the most populous city on the Volga and within the Volga Federal District.