Summary:
Zip code 77465, serving the communities of Palacios and Markham, Texas, is home to three schools spanning pre-kindergarten through 12th grade, split between two distinct districts: Palacios Independent School District (Isd) and Tidehaven Independent School District (Isd).
The standout school in this area is Markham Elementary (Tidehaven ISD), a 5-star school ranking in the 95th-96th percentile statewide. It dramatically outperforms its local counterpart, Palacios Elementary, in nearly every subject—for example, 96% of Markham's 5th graders were proficient in math versus the state average of 47%. In contrast, Palacios Junior Senior High School (Palacios ISD) shows a mixed profile: it boasts a strong 94.3% graduation rate and excels in U.S. History, but struggles significantly with math, where proficiency rates drop as low as 16.95% in 7th grade. Palacios Elementary also faces challenges, with math proficiency ranging from just 19.4% to 51.58% across grades.
A key takeaway is that spending does not predict success. Palacios Junior Senior High spends the most per student ($14,591) and has the smallest class sizes (11.1:1), yet it has the lowest academic performance. Meanwhile, Markham Elementary spends the least ($11,370) with larger classes (15.9:1) and achieves the highest results. This suggests that district-level strategies and instructional quality are the true differentiators. Despite higher economic disadvantage rates at Palacios schools (up to 77.21%), Markham Elementary proves that socioeconomic factors are not destiny, serving as a model for improvement. For parents, this zip code offers a clear choice: Tidehaven ISD's Markham Elementary provides exceptional elementary education, while Palacios ISD offers a high school with strong graduation rates but requires close attention to math support.
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