Garnet Valley High School

Garnet Valley High School is a public high school located in Glen Mills, Pennsylvania, serving around 1,500 students in grades 9-12. The school is part of the Garnet Valley School District, which is ranked 31 out of 606 school districts in the state and has a 5-star rating from SchoolDigger. Garnet Valley High School has consistently been ranked among the top high schools in Pennsylvania, with a current statewide ranking of 35 out of 681 high schools and a 5-star rating.

Garnet Valley High School stands out for its exceptional academic performance, with students significantly outperforming the state average on Keystone Exams. For example, in the 2024-2025 school year, 74.4% of Garnet Valley 11th graders were proficient or better in Algebra I, compared to the state average of 44.3%. The school also maintains excellent graduation rates, ranging from 87.5% to 97.6% over the past few years, and very low dropout rates, from 0.0% to 1.6%. Additionally, Garnet Valley High School excels in serving diverse student populations, ranking highly for various subgroups, including female, male, Asian, African American, and multi-racial students, as well as students with low socioeconomic status and students with disabilities.

When compared to nearby schools, Garnet Valley High School stands out. West Chester Henderson High School and West Chester East High School, both part of the West Chester Area School District, have lower overall rankings and academic performance compared to Garnet Valley. Similarly, STEM at Showalter and Chester High School, part of the Chester-Upland School District, have significantly lower academic performance and rankings. In contrast, Strath Haven High School, part of the Wallingford-Swarthmore School District, is another high-performing school in the region, with rankings and academic performance comparable to Garnet Valley High School.