© 2015 Elsevier B.V. There is a higher incidence of psychotic disorders in more socially deprived neighbourhoods and a higher risk in migrants living in neighbourhoods of low ethnic density. Yet it is unclear at what stage these neighbourhood environmental factors exert an influence on the risk for psychosis. 166 Ultra high risk for psychosis young people were included in this study. Neighbourhood data were obtained from the Australian Bureau of Statistics. There was a trend for UHR individuals to reside in relatively more deprived areas and there was no association between the rate of identification of UHR migrants and neighbourhood ethnic density.