Immigration to Sweden has increased since Second World War. The immigra-tion pattern has also shifted from labor immigration to refugee immigration. The relative labor market performance of immigrants began to worsen at the end of 1970s. The employment rate among foreign born persons is considera-bly lower than it is among Swedish born persons.Integration of foreign born persons in the areas of education, income and em-ployment varies among FA-regions in Sweden. FA-region means functional analysis region, where you can live and work without having time-wasting trips.The purpose of this thesis is to analyze the relationship between labor market participation of immigrants and segregation on the regional level.Three indices (Dissimilarity, Isolation and Gini) of segregation are used in or-der to investigate the relationship between segregation and employment level among immigrants. The results show that there exists a negative relationship between these variables. In FA-regions of metropolitan regions in spite of high segregation rate the relationship between segregation and employment rate is slightly weaker, than it is among FA-regions of large city regions. The main conclusion of this study is the regional perspective, the necessity of making this kind of analysis on regional level, not country level.