Chechens
In 1989, 73.4% spoke Russian, though this figure has declined due to the wars for a large number of reasons (including the lack of proper education, the refusal to learn the language, and the mass dispersal of the Chechen diaspora due to the war). Chechens in the diaspora often speak the language of the country they live in (English, German, Arabic, Polish, Georgian, etc.).
Kerek language
In 1997 there were still two speakers remaining, but by 2005 the language was considered extinct. According to the 2010 census, there were 10 people claiming Kerek as their native language, a number which may include partial speakers and non-speakers who claim the language as part of their ethnic heritage. Over the 20th century many members of the Kerek ethnic group shifted to Chukchi, the language of the majority ethnic group in the area, but now most Chukchis and Kereks speak Russian.