Summary:
The Garrison Independent School District (Isd) is served by a single high school, Garrison High School, a small rural institution for grades 9-12 with 221 students that has shown notable strengths and targeted challenges.
Garrison High School stands out for its perfect 100% graduation rate and 0% dropout rate for the 2023-2024 school year, a remarkable achievement given that 57% of its students are economically disadvantaged. The school also excels in English Language Arts, consistently beating the state average in both English I and English II Reading, with English II Reading proficiency reaching 67.92% in 2025-2026 compared to the state average of 59.88%. Its very low student-teacher ratio of 9.5:1 allows for significant individualized attention, which likely contributes to these successes. However, the school faces a clear challenge in mathematics, with Algebra I proficiency at 39.58% in 2025-2026, still below the state average of 54.03%, though this represents a dramatic improvement from just 11.63% the previous year. The school has consistently earned a 3-star rating from Schooldigger over the last three years, and its district is ranked 205th out of 951 districts in Texas, earning a 4-star rating.
Key metrics show a school with strong humanities performance but needing improvement in STEM fields. In 2025-2026, Garrison High School outperformed the state in English I Reading (+3.03%), English II Reading (+8.04%), and U.S. History (+3.74%), while trailing in Biology (-7.13%) and Algebra I (-14.45%). The school's state ranking has fluctuated, moving from the 66th percentile in 2023-2024 to the 54th percentile in 2025-2026, but the significant one-year improvement in Algebra I suggests the school is actively addressing its primary weakness. For parents, this is a school that provides a supportive, small environment with excellent graduation outcomes and strong teaching in reading and history, while actively working to strengthen its math and science programs.
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