470,000 in Russian Federation (2012 T. Salminen). Population total all countries: 479,090. Ethnic population: 548,000 (2010 census).
Mariy-El Republic, east of the Volga; Bashkortostan, Sverdlovskaya Oblast’, Kirovskaya Oblast’, and Permskiy Kray.
Grassland Mari (Meadow Mari, Sernur-Morkin, Volga, Yoshkar-Olin). A member of macrolanguage Mari [chm].
In many publications the term, Eastern Mari, is reserved for the diaspora groups outside the Republic. Christian, traditional religion.