Youth violence is a global social problem. It includes a range of deeds like bullying, physical fighting, severe sexual, physical assault to homicide and various atrocities. A set oftwenty risk factors of youth violence have been chosen, which stimulate aggressive behavior in them. In this study, theperception of youth is captured in a 10-pts rating scale regarding the degree of variation in the level of aggressiveness at the chosen risk factors of youth violence in Chennai. The average rating scale is used to cluster the attributes using Fuzzy c-means clustering and classify them as low, medium and high level of aggressiveness and it can be classified proactively to ensure violence that do not occur. The advantage of fuzzy clustering is an attribute can be part of more than one cluster to the varying degree and this gives a better picture about the risk factors for youth violence.