Migration against the nation

The article examines issues characterizing the demographic situation and socio-economic development of territories, their mutual influence. A review of scientific publications on the stated issues was conducted. The object of the study was the Russian Federation and the South Siberian macroregion (Altai Republic, Altai Krai, Kemerovo, Novosibirsk, Omsk and Tomsk regions), municipalities of the Novosibirsk region. The information basis of the work was open data of the Federal State Statistics Service, territorial bodies of the FSSS, information posted on the websites of the governing bodies of the Novosibirsk region and the mayor’s office of the city of Novosibirsk, the author’s assessments of the discussed problems and processes. Conclusions and recommendations are made.