Enrollment
173
Texas · 2024-25 NCES data
High school (grades 9-12) · San Antonio, TX
Cast Stem H S
Federal NCES profile for Cast Stem H S, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 484095013671
👥 S:T ratio 64
📚 AP courses 25
🌟 Gifted program 70
🎓 Counselors 83
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Cast Stem H S earns 48/100 on the Resource Investment Index, with class sizes smaller than 93% of Texas schools.
- #17 of 79
- high schools in San Antonio · Resource Index
- 48
- Resource Index · Typical
- 9.1:1
- small classes for Texas
- 65.2%
- free-lunch eligible
Cast Stem H S has class sizes smaller than 93% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Cast Stem H S ranks #17 of 79 high schools in San Antonio, TX.
School address
District: Southwest Isd · Texas
NCES ID 484095013671 Verify on NCES CCD record →
Teachers (FTE)
19.0
Federal CCD staff survey
Students per teacher
9.1:1
vs 14.7:1 Texas avg
-38% vs state
Free-lunch eligible
65.2%
vs 61.9% Texas avg
+5% vs state
Student-teacher ratio in context
How Cast Stem H S compares with Texas and U.S. medians
What stands out at Cast Stem H S
Cast Stem H S is a higher-need, small high school in San Antonio, Texas, enrolling 173 students.
Classes run notably small here: at 9.1:1, Cast Stem H S is leaner than roughly 93% of Texas schools and 38% under the state's 14.7:1 norm, more adult attention per pupil than most peers.
Its free-meal eligibility rate of 65.2% lands close to the Texas typical range, neither a high- nor low-need campus by this measure.
Enrollment of 173 puts it in the smaller third of Texas schools by headcount.
Its Resource Investment Index lands in the upper third of 8,960 scored Texas schools.
Against 431 statewide peers matched on enrollment and economic need, it ranks mid-pack at #211.
Its student body is predominantly Hispanic or Latino (86% of enrollment) (diversity index 26/100).
On the academic-pipeline side it reports 5 Advanced Placement courses.
Counselor coverage is strong, about 87 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 50.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 19.9% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Southwest Isd also operates Southwest H S (2,363 students) and Southwest Legacy H S (2,250 students) alongside Cast Stem 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 Stem H S compares
Cast Stem 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 | 9.1:1 | ▼ 38% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 65.2% | ▲ 5% | 61.9% | 51.7% |
| Enrollment | 173 | top 86% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.1:1
Leaner classes than 92% of US schools, among the more generously staffed nationally.
173
Bigger than 17% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
65.2%
free-lunch eligible
- 5% above the Texas average of 61.9%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
9.1:1
students per teacher
- 38% below state mean
Top 7% in Texas - lower ratio than 93% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
50.9%
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
$12,627
per pupil, district-wide
- below Texas avg of $13,644
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 87 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 7 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 4.0 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 85.5%
White 6.9%
African American 3.5%
Asian 2.9%
Two or More 1.2%
Largest group: Hispanic or Latino at 85.5% of enrollment.
Student-body diversity index 26.2/100
Simpson diversity index - at 26.2, Cast Stem H S is less mixed than the Texas school average of 44.7.
Programs
AP courses offered 5
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Southwest Isd, which includes Cast Stem H S.
$12,627
Per student
-7%
vs Texas
Avg $13,644
-24%
vs U.S.
Avg $16,593
Revenue mix
Local 35.4%
State 44.7%
Federal 19.9%
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 Stem H S Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Southwest H S | Larger | Similar economic need | Higher S:T ratio |
| Southwest Legacy H S | Larger | Higher economic need | Higher S:T ratio |
| Elm Creek El | Larger | Similar economic need | Higher S:T ratio |
| Francis R Scobee Middle | Larger | Similar economic need | Higher S:T ratio |
| Ronald E Mcnair Middle | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Cast Stem H S's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,363
- Students per teacher
- 17.6:1
- Resource Index
- 40/100
- Enrollment
- 2,250
- Students per teacher
- 18.8:1
- Resource Index
- 35/100
- Enrollment
- 805
- Students per teacher
- 17.1:1
- Resource Index
- 36/100
- Enrollment
- 797
- Students per teacher
- 15.3:1
- Resource Index
- 34/100
- Enrollment
- 784
- Students per teacher
- 15.7:1
- 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 (~173 students)
Similar student-teacher ratio (~9.1:1)
Next steps
Verify locally before acting on Cast Stem H S's federal record.
- Compare Cast Stem H S against another school. Compare schools
- Southwest 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 Stem H S
How many students attend Cast Stem H S?
Cast Stem H S has 173 students enrolled. It is a high school in San Antonio, TX.
What is the student-teacher ratio at Cast Stem H S?
The student-teacher ratio at Cast Stem H S is 9.1:1, which is 38% lower than the Texas average of 14.7:1 and 42% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Cast Stem H S?
65.2% of students at Cast Stem H S are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Cast Stem H S?
The largest demographic group at Cast Stem H S is Hispanic or Latino at 85.5% of enrollment, in San Antonio, TX.
What is the Resource Investment Index for Cast Stem H S?
Cast Stem H S has a Resource Investment Index of 48/100 (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 Stem H S rank among high schools in San Antonio?
By Resource Investment Index, Cast Stem H S ranks #17 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 Stem H S a good school?
Cast Stem H S earns 48/100 on the Resource Investment Index, with class sizes smaller than 93% of Texas schools. 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 Southwest Isd?
Besides Cast Stem H S, Southwest Isd also operates Southwest H S (2,363 students), Southwest Legacy H S (2,250 students), and Elm Creek El (805 students). See the Southwest 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.