The earliest arrivals, the 1976-1980 cohort, had stayed in the country for 1 to 5 years by the time of the 1981 Census, and 21 to 25 years by the 2001 Census. [...] The analysis focuses on the distribution of immigrants across eight geographic locations: Toronto, Montreal, Vancouver, the rest of Ontario, the rest of Quebec and Atlantic region, the rest of British Columbia (plus the Territories), the Prairies (Manitoba and Saskatchewan), and Alberta.4. [...] In testing the group affinity hypothesis, the author uses both the absolute and relative size of the pre- existing community for each of the selected immigrant groups. [...] The relative size of immigrants from a source country, measured as the share of an immigrant group in the total local population, reflects the importance of the group relative to the total local population and the potential exposure among the group members (Moore and Rosenberg 1995).5 To establish a time ordering for the effect of a pre-existing immigrant community on the current distribution of a [...] The index compares the difference between a given cohort of immigrants in a certain year after immigration, and the native-born population in its distributions across the eight regions.10 The index value ranges from 0 to 1, indicating the proportion of persons in the immigrant group that would have to change their area of residence in order for this group to have the same distribution as the nativ