Purpose: The purpose of this paper is to examine how Robbins ES has sustained high academic performance over almost 20 years despite several changes in principals. Design/methodology/approach: The paper analyzed longitudinal data based on: state-level academic and demographic data; two earlier studies of the school; and recent interviews with teachers, the principal, and parent leaders. Findings: The analyses of these longitudinal data revealed four ongoing factors were responsible for sustained academic performance: high expectations, distributed leadership, collective responsibility for student performance, and data-based decision making. However, challenges that persistently confront Robbins staff include limited resources (e.g. technology and library materials), high mobility rate, and some cases of unsupportive parents. Originality/value: This study adds to understanding how high-need urban schools can sustain high academic performance in spite of changes in principals, shifting community demographics, and high student mobility.