Reducing the number of early school leavers, those who quit education without at least a high school degree, is a key objective of educational policy throughout Europe. Previous research has shown that in particular youngsters from disadvantaged families face relatively high risks of school dropout. In this paper we use data from the 2009 ad hoc module of the Labour Force Survey to examine how macro-level determinants influence school dropout risks among different social groups. Our results indicate that both the design of the educational system (tracking age, extent of vocational education) and characteristics of the socioeconomic context (poverty rate, unemployment patterns) have an impact on the social distribution of school dropout risk.