The Republic of Mordovia (; Moksha/Erzya: Мордовия Республикась, Mordoviya Respublikas), also known in English as Mordvinia, is a federal subject of Russia (a republic). Its capital is the city of Saransk. As of the 2010 Census, the population of the republic was 834,755. Ethnic Russians (53.4%) and Mordvins (40.0%) account for the majority of the population.