The aim of the article is to analyse the impact of the self-evaluated ethnic composition of the place of residence on interethnic contacts and attitudes through the comparison of four Nordic countries. Data come from the European Social Survey 2002. Compared with ethnically homogeneous neighbourhoods, interethnic relationships are more common in ethnically mixed neighbourhoods with some self-reported ethnic minorities. However, living in an area with many perceived ethnic minorities does not necessarily increase the probability of having interethnic friends in all four countries. As contact theory suggests that, having interethnic friendship ties in combination with living in an ethnically mixed or ethnic neighbourhood is associated with the probability of having more tolerant attitudes towards immigrants in all four countries. Perceived ethnic threat, however, is generally at its lowest level in areas with only some ethnic minorities, which may leave some room for conflict or competition theories as well.