This study examined the practices of 24 community-based rape prevention programs. Although these programs were geographically dispersed throughout one state, they were remarkably similar in their approach to rape prevention programming. DiMaggio and Powell's (1991) theory of institutional isomorphism was used to explain the underlying causes of the homogeneity among the programs. Qualitative data indicate that the mimetic, normative, and coercive contextual factors pushed the programs into homogeneity. Implications for community psychology and organizational theory will be discussed. (Contains 2 figures and 1 table.)