HOW DOES SEGREGATION CONTEXT CHANGE AS A RESULT OF DIFFERENT MIGRATION FLOWS OR IMMOBILITY: THE CASE OF TALLINN Kadi MÄGI, Kadri LEETMAA, Tiit TAMMARU & Maarten van HAM University of Tartu, Estonia, kadi.magi@ut.ee, kadri.leetmaa@ut.ee, tiit.tammaru@ut.ee Delft University of Technology, The Netherlands, m.vanham@tudelft.nl Belonging to the Soviet Union and accompanying immigration from other Soviet republics was the main reason why predominantly Russian-speaking immigrant population lived in Estonia in the beginning of the 1990s. At the times of their arrival Russian-speaking immigrant population were mainly accomodated in certain areas of the country – major cities in the settlement system and within cities in large housing estates built during the Soviet years. For this reason the immigrant population lived concentrated in the settlement system and segregated in the cities by the end of Soviet period. The main objective of this research is to find out whether the characteristics of the living environment of Estonians and Russian-speakers remain ethnically similar after moving inside the city (Tallinn) or out of the city (suburbanisation and counterurbanisation) or is migration a process that favours spatial assimilation of formerly separately living minority population. The research uses the longitudinal database based on the 2000 and 2011 Census. The main results demonstrated that migration remarkably shaped the ethnic segregation while moving inside the city or leaving from Estonian capital city. The destinations of Estonians and Russian-speakers were different. Although for minority group the out-migration from Tallinn could bring along spatial assimilation since the share of minorities is lower outside of the capital city, immigrant population still mainly moved to the areas where they could find familiar ethnic environment. Thus, the ethnic composition of the living environments of the Russian-speaking minority population do not change drastically after migration.