Summary:
In zip code 78666, San Marcos, Texas, there are two middle schools—Miller Middle and Goodnight Middle—serving grades 6-8 within the San Marcos Consolidated Independent School District, a district ranked in the 32nd percentile statewide.
Miller Middle is the standout school in this area, consistently outperforming Goodnight Middle across nearly all academic metrics. Miller is ranked in the 53rd percentile (3 stars) for the 2025-2026 school year, placing it in the top half of Texas middle schools, while Goodnight sits in the 22nd percentile (1 star). Miller’s upward trajectory is notable, improving from the 39th percentile in just two years, whereas Goodnight has remained stagnant in the low 20s. The most dramatic difference is in Algebra I, where Miller achieved a remarkable 95.8% proficiency rate—nally double the state average—compared to Goodnight’s 64.66%. However, both schools struggle with standard grade-level math, scoring well below the state average of 38.41% proficiency. In reading, Miller (54.65%) nearly matches the state average (55.42%), while Goodnight (38.74%) lags significantly.
Spending per student is nearly identical between the two schools ($10,097 vs. $9,838), indicating the performance gap is not due to financial resources but likely other factors like school culture or instructional programs. The data also reveals a fascinating split in math performance: both schools excel in advanced Algebra I but underperform in general math, suggesting they effectively accelerate top students but may need to better support struggling learners. With similar enrollment sizes (around 890 students) and student-teacher ratios (14.6 to 15.3), the key takeaway for parents is that Miller Middle offers a stronger, improving academic environment, while Goodnight Middle faces greater challenges and may require additional support to break its performance plateau.
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