When compared to research on the family and the school, the study of peer groups within the context of political socialization is a relatively neglected area. Somewhat more concern for peer-group effects has been indicated by non-political social scientists, especially social psychologists. But even though some of their work is suggestive, its application is often marginal for explaining political attitudes. Just as the existing theory on peer-group political socialization is weak, so are the existing data and analysis. The purpose of this paper is to examine the nature and extent of peer-group socialization among German students. This analysis is based on a survey of student attitudes at the University of Cologne. The survey is a random sample of 855 respondents and was carried out in 1968.