Summary:
The Calvin Nelms Charter Schools district in Katy, Texas, serves 343 students across two schools—Calvin Nelms High School and Calvin Nelms Middle—and ranks in the 94th percentile statewide with a 5-star rating, offering an intimate learning environment with strong academic outcomes.
Calvin Nelms High School is the district’s standout, earning a 5-star rating and ranking in the 90th percentile or higher for three consecutive years. It boasts a perfect 100% graduation rate and 0% dropout rate for 2023-2024, with exceptional test scores in 2025-2026: 87.5% proficient in U.S. History, 85.42% in Biology, and 83.33% in Algebra I—outpacing state averages by 15 to 30 percentage points. The school shows consistent improvement in core subjects like Algebra I and English II Reading. In contrast, Calvin Nelms Middle earns a 4-star rating and ranks in the 82nd percentile, with a notable strength in advanced math: 100% of its students taking the Algebra I End-of-Course exam were proficient, compared to just 54.03% statewide. However, the middle school has a clear weakness in 8th Grade Social Studies, where only 31.58% were proficient—essentially tied with the state average—representing a significant drop from prior years.
Key metrics reveal efficient spending: $8,584 per student at the high school and $8,012 at the middle school, both below national averages, yet the district achieves top-tier results. The middle school’s reading scores are consistently high across all grades, while math scores show volatility, suggesting a strong literacy program but a need for more consistent math scaffolding. The high school’s upward trajectory—improving from the 91st to 93rd percentile in recent years—combined with its perfect graduation rate, paints a picture of a district that is not just good but actively improving, making it a compelling choice for families seeking high performance with efficient resource use.
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