Research conducted on youth exposure to violence has generally focused on documenting the prevalence of community violence and its emotional and behavioral implications. However, there is a dearth of information related to the impact of violence on the implementation and evaluation of community and school-based programs. This commentary examines the impact of community violence on a school-based research program. It is also a brief summary of the detrimental effects of exposure to community violence on psychological and academic functioning and health outcomes. An example of the impact of community violence on the implementation of a school-based asthma program will be addressed. Implications for school nurses will be discussed.