Summary
Denison High School in Denison, TX, serves 1,351 students in grades 9-12 within the Denison Independent School District (Isd), a mid-to-large sized school where over half of the student body is economically disadvantaged. While the school has a history of solid, mid-tier performance, its statewide rank has notably declined in recent years, dropping to the 46th percentile for the 2025-2026 school year—its lowest point in a decade. This contrasts with nearby schools like Pottsboro High School (86th percentile) and Bells High School (79th percentile), which are maintaining or improving their high ranks.
Despite this overall decline, Denison has a clear academic strength in Biology, with 76.4% of students proficient in the 2025-2026 school year, significantly outpacing the state average of 70.5%. This consistent outperformance suggests an effective science department that could serve as a model for other subjects. The school also maintains an exceptionally high graduation rate of 97.3%, higher than the district average and competitive with top-performing nearby schools, indicating it is effective at ensuring students complete their education even as test scores have slipped. Additionally, Denison consistently outperforms the larger Sherman High School in nearly every academic metric, suggesting the district is managing the challenges of a high-poverty student body more effectively than its neighbor.
However, the school faces challenges, including a significant decline in performance for its Gifted and Talented students, whose rank dropped from the 82nd to the 53rd percentile in recent years. The school's alternative campus, Pathways High School, also highlights the difficulty of serving at-risk students, with very high per-student spending but low academic results. Overall, Denison High School is at a crossroads, with a strong graduation rate and a standout Biology program, but a need to reverse a systemic decline in test scores across most subjects and student groups.
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