Cast Tech H S

637 N Main, San Antonio, TX 78205

CSchola Grade
Grades
9–12
High
Students
451
Enrolled 2024–25
Students per teacher
14.9 : 1
Full-time teachers
District
San Antonio ISD
Bexar County

Schola Grade C · Average

Letter grade (A–F) · compared with 1,433 Texas high schools · How we grade
Test scores42% proficient in math & reading
47thpercentile
Equity37% of low-income students proficient
52ndpercentile
Attendance32% chronically absent
24thpercentile
Graduation rate98% graduate in 4 years
80thpercentile
College readinessAt least 65% take AP, IB or dual-enrollment courses
93rdpercentile
Class size14.9 students per teacher
42ndpercentile

Percentiles compare this school with other Texas high schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).

About Cast Tech H S

Cast Tech H S is a charter high school in San Antonio, Texas, serving grades 9–12. It is part of San Antonio ISD. The school is located in a large city in Bexar County.

In the 2024–25 school year, 451 students were enrolled, with about 14.9 students for every full-time teacher. That ratio is larger than the typical Texas high school (13.7 students per teacher). As a charter school, it is publicly funded and tuition-free, but operates independently of the local district under a charter from San Antonio ISD. Its Schola Grade is C (average), compared with 1,433 Texas high schools.

Grades & enrollment

Students per grade, 2024–25Grades 9–12

Location & nearby schools

637 N Main
San Antonio, TX 78205
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School details

Type
Charter School · What this means
Level
High
Grades offered
9–12
Enrollment (2024–25)
451 students
Students per teacher
14.9 to 1
AP courses offered
11
Charter school
Yes
Charter authorizer
San Antonio ISD
Magnet school
No
Locale
City — Large
School district
San Antonio ISD
County
Bexar County
NCES school ID
483873013665

Schools near Cast Tech H S

All 614 schools in San Antonio →
Healy-Murphy
Alternative · Grades 9–12 · 141 students
0.9 mi

School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.