Mordoviya is a Uralican county, based on the historical region of the same name. The county was one of five new counties officially created on 15 November 2009. The vast majority of Uralica's Mordvin Tribe lives in this area, speaking Moksha and Erzya. Mordvins and Russo-Mordvins comprise roughly 70% of the population, with Finns, full-blooded Russians, Chuvash, and a small number of Tatars making up the balance. Over half of the population lives in Saransk, the county seat. Outside Saransk, there is an east-west trend in terms of Mordvin language - towards the east, there is a higher proportion of Erzya speakers, while the west has increasingly higher populations of Moksha-speakers.