Summary:
Zip code 78631, serving the rural community of Harper, Texas, is home to a single high school, Harper High School, which serves grades 9 through 12 within the Harper Independent School District (Isd).
Harper High School is a standout for its exceptional student support and academic strengths. With only 171 students and a very low student-teacher ratio of 8.8 to 1, the school provides a highly personalized learning environment. This is reflected in its perfect 100% graduation rate and 0% dropout rate for the 2023-2024 school year. The school excels in humanities, with U.S. History proficiency at 89.47% and English I Reading at 68.29%—both significantly above the state average. However, there is room for improvement in STEM subjects, as Algebra I proficiency (51.22%) falls slightly below the state average. The district itself is highly ranked, placing 160th out of 951 districts in Texas and earning a 4-star rating from SchoolDigger.
One interesting finding is the volatility in English II Reading scores, which swung from an outstanding 82.5% proficiency in 2024-2025 to 59.57% in 2025-2026, likely due to the small cohort size. Additionally, while the school’s state ranking has declined from the 84th to the 70th percentile over three years, its raw test scores in subjects like Biology and U.S. History remain strong, suggesting other schools are improving faster rather than a decline in performance. Overall, Harper High School offers a supportive, high-achieving environment with a focus on keeping every student on track to graduate.
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