The history of the settlement of the Kazakhstan territory by Tatars took place over several centuries. At present, they are among the eight most numerous ethnic groups of the republic. Over the years of residence on the Kazakh land, the demographic behavior of Tatars constantly changed. In this regard, the author of the article sought to show the dynamics of the number and location of the Tatar diaspora in Kazakhstan, as well as the features of their intra-republican distribution over a twenty-year period. Considering the demographic characteristics of the Tatars in Kazakhstan, the main focus was made on the census of 1989, 1999, and 2009, the analysis of which showed that since the 80s of the 20th century, the growth rate of Tatars has slowed significantly; while in the 90s of 20th and early 21st centuries, there is a noticeable reduction in the Tatar population. The reasons for this were, first of all, the external migration of Tatars, a decrease in birth rate and an increase in mortality among them. During 1989–2009, Tatars steadily occupied the sixth place in their numbers among the other most numerous ethnic groups of the republic. The region most populated by the Tatars in the period between the three censuses of 1989, 1999, and 2009 was the Karaganda Region, the least number of Tatars lived in Mangistau – 0.3% and Kyzylorda – 0.3%. Tatars are one of the most urbanized ethnic groups in Kazakhstan. In the urban population, they occupy the 5th place in their number. Over 10% of the Tatars live in rural areas of Almaty, Kostanay, Akmola, and South Kazakhstan regions. Representatives of the ethnic group under discussion reside in virtually all regions of Kazakhstan. The resettlement of Tatars in these regions of the republic was primarily influenced by the socio-economic situation, professional structure, high educational level, culture and lifestyle of the Tatar diaspora representatives.