Enrollment
451
Texas · 2024-25 NCES data
High school (grades 9-12) · San Antonio, TX
Cast Tech H S
Federal NCES profile for Cast Tech H S, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 483873013665Charter school
👥 S:T ratio 40
📚 AP courses 60
🌟 Gifted program 70
🎓 Counselors 55
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Cast Tech H S earns 45/100 on the Resource Investment Index, with class sizes near the Texas median.
- #44 of 79
- high schools in San Antonio · Resource Index
- 45
- Resource Index · Typical
- 15:1
- students per teacher
- 59.3%
- free-lunch eligible
Cast Tech H S has class sizes near the Texas median. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Cast Tech H S ranks #44 of 79 high schools in San Antonio, TX.
School address
District: San Antonio Isd · Texas
NCES ID 483873013665 Verify on NCES CCD record →
Teachers (FTE)
30.0
Federal CCD staff survey
Students per teacher
15:1
vs 14.7:1 Texas avg
+2% vs state
Free-lunch eligible
59.3%
vs 61.9% Texas avg
-4% vs state
Student-teacher ratio in context
How Cast Tech H S compares with Texas and U.S. medians
What stands out at Cast Tech H S
Cast Tech H S is a higher-need, mid-sized charter high school in San Antonio, Texas, enrolling 451 students.
At 15:1, its student-teacher ratio sits close to the Texas median, within a few percentage points of the 14.7:1 state norm, neither notably crowded nor notably small.
Its free-meal eligibility rate of 59.3% lands close to the Texas typical range, neither a high- nor low-need campus by this measure.
With 451 students, its enrollment sits close to the Texas median campus size.
Its Resource Investment Index sits near the middle of the pack among 8,960 scored Texas schools.
Against 1,358 statewide peers matched on enrollment and economic need, it ranks mid-pack at #873.
Its student body is predominantly Hispanic or Latino (89% of enrollment) (diversity index 21/100).
On the academic-pipeline side it reports 12 Advanced Placement courses.
Counselor coverage is strong, about 226 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 45.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 27.0% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
San Antonio Isd also operates Jefferson H S (1,706 students) and Lanier H S (1,620 students) alongside Cast Tech H S.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Cast Tech H S compares
Cast Tech H S on the metrics families compare, against Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15:1 | ▲ 2% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 59.3% | ▼ 4% | 61.9% | 51.7% |
| Enrollment | 451 | top 57% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15:1
Leaner classes than 47% of US schools, a middle-of-the-pack class size.
451
Bigger than 55% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
59.3%
free-lunch eligible
- 4% below the Texas average of 61.9%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
15:1
students per teacher
- 2% above state mean
Top 59% in Texas - lower ratio than 41% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
45.5%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$13,912
per pupil, district-wide
- above Texas avg of $13,644
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 226 students, the combined health-and-guidance staffing load for this school.
Discipline context
5
in-school suspensions + 7 out-of-school
Suspension rate: 1.1 per 100 students. Combined in-school and out-of-school rate: 2.7 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 88.9%
White 6.4%
African American 2.7%
Asian 1.3%
Two or More 0.4%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 88.9% of enrollment.
Student-body diversity index 20.5/100
Simpson diversity index - at 20.5, Cast Tech H S is less mixed than the Texas school average of 44.7.
Programs
AP courses offered 12
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for San Antonio Isd, which includes Cast Tech H S.
$13,912
Per student
+2%
vs Texas
Avg $13,644
-16%
vs U.S.
Avg $16,593
Revenue mix
Local 42.8%
State 30.1%
Federal 27.0%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Cast Tech H S Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Jefferson H S | Larger | Higher economic need | Similar S:T ratio |
| Lanier H S | Larger | Higher economic need | Higher S:T ratio |
| Brackenridge H S | Larger | Higher economic need | Similar S:T ratio |
| Highlands H S | Larger | Higher economic need | Similar S:T ratio |
| Burbank H S | Larger | Higher economic need | Similar S:T ratio |
Comparisons are relative to Cast Tech H S's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,706
- Students per teacher
- 14.6:1
- Resource Index
- 48/100
- Enrollment
- 1,620
- Students per teacher
- 16.9:1
- Resource Index
- 46/100
- Enrollment
- 1,593
- Students per teacher
- 15.6:1
- Resource Index
- 36/100
- Enrollment
- 1,478
- Students per teacher
- 13.6:1
- Resource Index
- 52/100
- Enrollment
- 1,405
- Students per teacher
- 15.4:1
- Resource Index
- 35/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Texas, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~451 students)
Next steps
Verify locally before acting on Cast Tech H S's federal record.
- Compare Cast Tech H S against another school. Compare schools
- San Antonio Isd's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Cast Tech H S
How many students attend Cast Tech H S?
Cast Tech H S has 451 students enrolled. It is a high school in San Antonio, TX.
What is the student-teacher ratio at Cast Tech H S?
The student-teacher ratio at Cast Tech H S is 15:1, which is 2% higher than the Texas average of 14.7:1 and 4% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Cast Tech H S?
59.3% of students at Cast Tech H S are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Cast Tech H S?
The largest demographic group at Cast Tech H S is Hispanic or Latino at 88.9% of enrollment, in San Antonio, TX.
What is the Resource Investment Index for Cast Tech H S?
Cast Tech H S has a Resource Investment Index of 45/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Cast Tech H S rank among high schools in San Antonio?
By Resource Investment Index, Cast Tech H S ranks #44 of 79 high schools in San Antonio, TX. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in San Antonio on the city page.
Is Cast Tech H S a good school?
Cast Tech H S earns 45/100 on the Resource Investment Index, with class sizes near the Texas median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in San Antonio Isd?
Besides Cast Tech H S, San Antonio Isd also operates Jefferson H S (1,706 students), Lanier H S (1,620 students), and Brackenridge H S (1,593 students). See the San Antonio Isd district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.