Abstract Historically, Tatars and Bashkirs settled in different regions of the Republic of Kazakhstan before the Chuvashs. The significant increase in the proportion and the absolute number of ethnic groups occurred in the 1950-1960s, associated with the development of virgin lands and industrialization of the republic in the post-II World War period. With the collapse of the USSR and the changed political and socio-economic conditions of life, the number of Tatars, Bashkirs and Chuvashes living in Kazakhstan decreased. The diasporas try to preserve their culture and language and maintain contact with their relatives residing on the territory of the Russian Federation. Since the mid-1990's cultural centers have opened in places of compact residence of ethnic groups, but in most cases they do not function today. At present, the Assembly of Peoples of Kazakhstan and the regional House of Friendship are consolidating the multi-ethnic population. These organizations aimed to prevent inter-ethnic conflicts through the support of socially oriented activities of national diasporas. At the same time, in the last two years the themes of Kazakhs' attitude towards representatives of other nationalities, first of all Russians and other nationalities, who live on the territory of Russian Federation, became more topical in the public space. During the mass protests in Kazakhstan in early 2022, various nationalist organizations and movements clearly manifested themselves, including those negatively disposed toward ethnic groups that Kazakhs consider "Russian". This has affected the well-being of Russian-speaking peoples and migration processes. The report uses published materials and data from our own field research. Statistical materials are analyzed using mathematical methods, the results of which will help to predict many ethnic processes and phenomena.