Summary:
The three public schools in the Dilley Independent School District (Isd) serve 841 students across elementary, middle, and high school grades in the city of Dilley, Texas, a community where over 72% of students face economic disadvantage.
Mary Harper Middle stands out as the district's strongest performer, showing remarkable improvement from the 13th to the 38th percentile in state rankings over three years and earning a 2-star rating—the highest in the district. Its 8th-grade math proficiency rate of 71.88% dramatically exceeds the state average of 47.24%, suggesting a highly effective math program worth replicating. In contrast, Dilley Elementary faces the most significant challenges, ranking in the 3rd percentile with only 18.87% of 4th graders proficient in reading compared to the state's 53.04%. Dilley High School provides stability with a consistent 13th-15th percentile ranking and a strong 94.4% graduation rate with only a 0.4% dropout rate, indicating effective student support despite low test scores.
Key metrics reveal that spending does not predict performance—Dilley High School spends the most per student ($15,600) but ranks lower than Mary Harper Middle, which spends $13,985 per student. All schools maintain favorable student-teacher ratios between 9.5:1 and 11.8:1. The district's most promising trend is Mary Harper Middle's upward trajectory, while Dilley Elementary's downward trend from the 10th to 3rd percentile demands urgent attention. The high graduation rate remains a bright spot, showing that Dilley High School successfully keeps students on track to complete their education despite academic challenges.
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