Summary:
Zip code 75640, serving the Diana, Texas area, is home to a single high school, New Diana High School, which serves grades 9-12 with an enrollment of 330 students as part of the New Diana Independent School District (Isd).
New Diana High School stands out for its exceptional performance in English and Biology, consistently exceeding state averages by 11 to 17 percentage points in recent years. The school boasts a near-perfect graduation rate of 98.6% and a 0.0% dropout rate, reflecting strong student retention. However, the school faces challenges in Algebra I and U.S. History, where proficiency rates lag behind state averages by 10 to 13 percentage points. Notably, Algebra I scores have shown significant volatility, dropping to 24.51% in 2024-2025 before rebounding to 41.11% in 2025-2026. The school maintains a stable 3-star state ranking in the 65th-66th percentile, indicating consistent overall performance despite year-to-year fluctuations in individual subjects.
With a favorable student-teacher ratio of 13.6:1 and spending of $13,172 per student, the school appears to invest effectively in its teaching staff. Nearly 40% of students are economically disadvantaged, yet the school achieves strong outcomes in key areas like English and Biology, suggesting effective support systems. The school's consistent state ranking masks notable swings in subject-specific scores, indicating that each graduating class may have varying academic strengths. Overall, New Diana High School offers a solid educational foundation with clear strengths in language arts and science, while areas like math and history present opportunities for targeted improvement.
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