Summary:
The four public schools in zip code 78578, serving approximately 1,783 students in Port Isabel, Texas, are part of the Point Isabel Independent School District (Isd), which ranks in the 29th percentile statewide and faces significant challenges due to high economic disadvantage, with 82% to 91.7% of students eligible for free or reduced lunch.
Derry Elementary stands out as the top performer, earning a 3-star rating and ranking in the 60th percentile statewide despite 85.2% economic disadvantage, consistently outperforming Garriga Elementary in key subjects like 4th Grade Math (59.26% vs. 53.85% proficient) and 5th Grade Science (41.43% vs. 25.45%). Port Isabel Early College High School shows a mixed profile with a 89.5% graduation rate and strong U.S. History (68.42% proficient) and Biology (62.2%) scores, but struggles in Algebra I with only 25.89% proficient. Port Isabel J H is the weakest link, with a declining state ranking and a crisis in math proficiency—only 7.79% of 7th graders and 15.45% of 6th graders are proficient, far below state averages.
Key takeaways include the stark contrast between Derry and Garriga Elementary, suggesting school-level factors like leadership and teaching practices drive success despite similar poverty levels. The middle school's math performance demands urgent intervention, while the high school's early college designation offers opportunities but requires stronger foundational skills to benefit all students. Favorable student-teacher ratios (12.2:1 to 14.5:1) and consistent per-student spending ($10,692 to $12,552) provide a foundation for improvement, but targeted efforts are needed to address the district's below-average rankings.
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