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Best Public Schools in Zip Code 78133


At a glance
3
Schools
968
Students
2
Districts
Top rankedMt Valley Elementary865th of 4,627 Texas elementary schools
Biggest riser
Startzville Elementary up 129 spots statewide this year
Summary:

Zip code 78133 in Canyon Lake, Texas, is home to three schools serving elementary and high school grades, offering a stark contrast in educational quality between a high-performing district and a struggling charter system.

The standout school in the area is Mt Valley Elementary, part of the highly-ranked Comal Independent School District (Isd). It consistently earns a 4-star rating and outperforms state averages in most subjects, with strong 5th-grade reading (78%) and math (65%) proficiency. Just five miles away, Startzville Elementary, also in Comal ISD, holds a solid 3-star rating but shows lower test scores, likely reflecting higher poverty levels (65% free/reduced lunch vs. 47% at Mt Valley). Both elementary schools offer favorable student-teacher ratios (13:1 and 12:1), but Mt Valley clearly leads in academic performance. In contrast, Trinity Charter Schools - Canyon Lake Campus is a tiny high school with only 15 students, a 1-star rating, and critically low test scores—including 0% proficiency in Algebra I. Despite spending over $27,000 per student—more than double the elementary schools—it ranks in the 2nd percentile statewide, highlighting a spending-versus-performance paradox likely driven by intensive support needs.

A key takeaway is the "tale of two districts" within this single zip code: Comal ISD offers strong elementary options, while Trinity Charter School is among the lowest-ranked in Texas. Additionally, there is no traditional public high school in 78133, meaning most families must commute outside the zip code for high school. For parents, the choice is clear: Mt Valley Elementary is the top performer, Startzville provides a stable option, and the charter high school should be approached with caution due to its severe academic challenges.

Ranking:
Map legend
E Elementary M Middle H High A Alternative P Private





Cities Near Zip Code 78133

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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Texas Education Agency.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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