The present study analyses the violence in a non university school population at the Valencian Community, thorough dates obtained from an online register. In general, analysis of data shows that aggression is more often on the first courses of Secondary Education, where more disciplinary measures are used. Physical and verbal violence are more often than violence against property, social exclusion or sexual violence. According to topography, most part of incidences occurs in classrooms, courtyards, corridors and around the school. Acts of violence are not invisible: Pupils, tutors and teachers recognize violent acts, but families report them less often. There are one or two people implicated in acts of violence. Percentage of men is bigger than women as bullies, but there are no sex differences when we talk about victims, except the first courses of secondary school, where there are more male victims.