In Europe a range of segregation studies can be found in the North, West and South, but hardly any in Central Eastern Europe - a region where the major economic and political changes induced by the demise of socialism in 1989 contributed to new social divisions and related spatial patterns. However, these changes have not been uniform and have resulted in context-specific outcomes. Relying on data on the socio-occupational structure of the population from the National Census 2002 at the census tract scale, this article explores the levels and patterns of social segregation in three major Polish cities: Lodz, Cracow and Warsaw, urban areas that reflect divergent paths of more and less successful post-socialist transformations. This contribution concludes that, more than a decade after the demise of socialism, census tracts still generally contained populations that were heterogeneous with regard to socio-occupational status and that socioeconomic transformations in Poland and the social toll these processes involved have not yet been fully translated into intra-urban spaces.