The current study presents the prevalence of students' reports of perpetration of violence toward peers and teachers among 16,604 7th- through 11th-grade Jewish and Arab students in Israel and examines the individual and school contextual factors that explain students' violence. The study explores how students' reports of violence are influenced by individual factors (gender, age, perception of school climate and intervention) and school contextual factors (cultural affiliation, SES of students' families, school and class size, school climate, intervention). Almost one third of all students reported at least one form of perpetration toward peers, and one in five reported perpetration against teachers. Compared to the school climate characteristics, school organizational factors, and cultural affiliation, students' SES has the highest contribution to explained variance in reports of violence toward others. The discussion highlights the need to allocate more resources to schools in low-SES contexts to protect low-SES students from school violence. (Contains 8 tables and 2 notes.)