Summary:
The Hidalgo Independent School District (Isd) contains a single middle school, Diaz J H, which serves grades 6 through 8 and has an enrollment of 615 students in a high-poverty area where 87.48% of students qualify for free or reduced lunch.
Diaz J H is a school of stark contrasts. Its most impressive feature is a standout Algebra I program, where 85.71% of students scored proficient on the 2025-2026 STAAR test—dramatically outperforming the district average of 45.61% and the state average of 54.03%. This success, however, masks significant struggles in other areas. Standard 8th-grade math proficiency sits at just 39.65%, and 7th-grade math has plummeted to a critical low of 14.38% proficiency, a staggering 22-point drop from the previous year. Reading scores are also consistently below state averages, ranging from 43% to 47% across grades, and 8th-grade social studies proficiency is only 18.18%. The school’s state ranking has declined from the 34th percentile to the 28th percentile in one year.
Despite these challenges, the school maintains a very low dropout rate of 0.5% and a favorable student-teacher ratio of 11.9:1, which allows for more individualized attention. The high Algebra I scores prove that high achievement is possible at Diaz J H, but the primary challenge is replicating that success across all subjects. The severe underperformance in 7th-grade math is a major red flag that suggests a potential breakdown in curriculum or instruction at that grade level, which will likely impact future 8th-grade performance. For parents, this means the school offers an exceptional advanced math track but requires significant support in core subjects, especially standard mathematics and social studies.
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