Communities are seeking ways to improve health by reducing violence. The Social Ecology Model of Adolescent Interpersonal Violence Prevention is presented as a tool for communities to use in identifying and addressing the multiple factors impacting engagement in or avoidance of violent behaviors. The CityNet Healthy Cities model is presented as a process for communities to use in developing broad-based actions groups capable of having an impact on violence. Together these models can be used by health professionals as they work with communities. Suggestions for community assessment, evaluation of available programs, committee development, and implementation are provided using the two models.