Summary:
This analysis examines eight high schools in the 78570 zip code of Mercedes, Texas, serving grades 9-12 (and some 6-12), which are governed by four districts and show a stark divide between high-performing magnet schools and struggling traditional campuses.
The standout schools in this area are the South Texas Independent School District (Isd) Science Academy and South Texas Independent School District (Isd) Health Professions, both ranked in the top 12% of Texas high schools with 100% graduation rates and test scores far exceeding state averages. In contrast, Mercedes Academic Academy is the most challenged, ranking in the bottom 10% with a 68.7% graduation rate and single-digit proficiency in core subjects. A notable success story is Mercedes Early College Academy, which despite being part of the low-performing Mercedes Independent School District (Isd), ranks in the 60th percentile statewide and achieves test scores near state averages. The South Texas Independent School District (Isd) Virtual Academy shows strong reading and history scores but struggles with middle school math and science, while Mercedes High School, the largest school with 903 students, ranks in the bottom 15% and consistently scores 20-30 points below state averages.
Key metrics reveal that higher spending does not guarantee success—South Palm Gardens High School spends the most per student ($19,724) but ranks in the bottom 15%, while Mercedes Early College Academy spends the least ($8,069) and is the second-highest ranked. The average graduation rate is 91.1%, but ranges from 68.7% to 100%, and the average free/reduced lunch rate is 77.7%, indicating widespread economic disadvantage. The most important takeaway for parents is that specialized programs like early college and magnet academies can dramatically outperform their district peers, making school choice critical in this area.
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