Kazan metropolitan area is one of the largest metropolitan areas located in Russia which metropole includes the cities and districts of Tatarstan and Mari El republics: Cities: Kazan, Zelenodolsk, Volzhsk; Districts (rayons) of Tatarstan: Atninsky, Verkhneuslonsky, Vysokogorsky, Zelenodolsky, Laishevsky, Pestrechinsky; Districts (rayons) of Mari El: Volzhsky, Zvenigovsky.
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