The paper presents a multiscale analysis of the development of domestic reindeer breeding in the Russia’s Arctic regions. The factors that have the strongest impact on the dynamics of the reindeer number at different spatial levels (national, regional, local) are revealed. The reasons for the territorial shift of domestic reindeer breeding in the Russian Federation in the western tundra zone and the reasons for the loss of the Chukotka Autonomous Okrug leadership in the reindeer number in the post-Soviet period are established. On the case of the okrug intraregional shifts (on municipal districts) and the factors causing them (economic, political, climatic, social and cultural) are revealed. By the example of the okrug, intraregional shifts (on municipal districts) and the factors causing them (economic, political and institutional, climatic, social and cultural) are revealed. For the first time, information on all reindeer farms in Chukotka was systematized and generalized, which allowed studying the features of the post-Soviet transformation of individual enterprises. The local peculiarities of development of the sector were investigated in detail based on the data of field investigations in the farms of the okrug (the settlements of Neshkan, Konergino, Tavaivaam). It is concluded that the trends of the reindeer number in Chukotka at all spatial levels during the economic crisis were synchronous with the general economic situation in the country, but such a close relationship is not observed in the years of relatively stable development. Intraregional and local contrasts and differences in the sector intensify during the crisis and, conversely, weaken during the period of stabilization and growth.