Phoenix Union High School District (PUHSD) has its roots in Territorial Arizona and has served generations of residents as Phoenix evolved from a dusty agricultural town into the fifth-largest city in the nation. For decades, Phoenix Union High School was the lone high school in Phoenix. Desegregation funding makes up approximately 24 percent of the district's budget, allowing PUHSD to develop a series of magnet programs in areas such as aerospace, bioscience, police and fire science, and computer coding. PUHSD also has launched the state's first and only Montessori High School, as well as doubled the state average spent on support services for students to help ensure their security, well-being and achievement. Understanding the role and importance of desegregation funding to the district requires an understanding of the demographic and legal history of PUHSD, as well as some of its successes, which is presented in this report.