Subject and purpose of work: The subject of the research is the Silesian Voivodeship, identified with the region which, almost until the end of the 20th century, was characterized by a positive balance of population migration in interregional flows. Since 1999, it has become a runoff area. The aim of the article is to present the size of the links in terms of permanent migration of the Silesian region population with other voivodeships and the resulting demographic losses that this region has suffered over 20 years. Materials and methods: The research method is reduced to the analysis of data on the migration of people to and from the Silesian region in 1999-2018 with the use of statistical methods. The basic source of data that formed the ...