School engagement predicts academic and long-term outcomes, yet contextual influences are often overlooked. Grounded in Ecological Social Justice School Counseling, an SDOH-informed framework, this study uses adolescent data from the 2024 National Survey on Drug Use and Health. Using SEM, links between SDOH and engagement, mediation by parent relationships, and demographic differences are explored. Findings underscore systemic inequities and offer implications for school counseling practice.