Enrollment
508
Texas · 2024-25 NCES data
Other / mixed grade configuration · San Antonio, TX
Sst Discovery
Federal NCES profile for Sst Discovery, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
2024-25 NCES dataOther / mixed grade configurationNCES 480140012140Charter school
👥 S:T ratio 56
🌟 Gifted program 70
📋 Attendance 9
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sst Discovery earns 45/100 on the Resource Investment Index, with class sizes smaller than 85% of Texas schools.
- #93 of 327
- schools in San Antonio · Resource Index
- 45
- Resource Index · Typical
- 11:1
- small classes for Texas
- 61.1%
- free-lunch eligible
Sst Discovery has class sizes smaller than 85% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Sst Discovery ranks #93 of 327 schools in San Antonio, TX.
School address
District: School of Science and Technology Discovery · Texas
NCES ID 480140012140 Verify on NCES CCD record →
Teachers (FTE)
46.0
Federal CCD staff survey
Students per teacher
11:1
vs 14.7:1 Texas avg
-25% vs state
Free-lunch eligible
61.1%
vs 61.9% Texas avg
-1% vs state
Student-teacher ratio in context
How Sst Discovery compares with Texas and U.S. medians
What stands out at Sst Discovery
Sst Discovery is a higher-need, mid-sized charter combined-grade school in San Antonio, Texas, enrolling 508 students.
Classes run notably small here: at 11:1, Sst Discovery is leaner than roughly 85% of Texas schools and 25% under the state's 14.7:1 norm, more adult attention per pupil than most peers.
Its free-meal eligibility rate of 61.1% lands close to the Texas typical range, neither a high- nor low-need campus by this measure.
With 508 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 1,554 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #583.
Its student body is led by Hispanic or Latino (77%) and Asian (8%) (diversity index 40/100).
Chronic absenteeism is elevated: 36.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding School of Science and Technology Discovery spends $10,485 per pupil, 23% below the Texas average, a leaner-resourced district than most.
School of Science and Technology Discovery also operates Sst Corpus Christi (2,343 students) and Sst Sugarland (739 students) alongside Sst Discovery.
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 Sst Discovery compares
Sst Discovery on the metrics families compare, against Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11:1 | ▼ 25% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 61.1% | ▼ 1% | 61.9% | 51.7% |
| Enrollment | 508 | top 49% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11:1
Leaner classes than 83% of US schools, among the more generously staffed nationally.
508
Bigger than 63% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
61.1%
free-lunch eligible
- 1% 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
11:1
students per teacher
- 25% below state mean
Top 15% in Texas - lower ratio than 85% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
36.2%
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
$10,485
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
19
in-school suspensions + 11 out-of-school
Suspension rate: 3.7 per 100 students. Combined in-school and out-of-school rate: 5.9 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 76.6%
Asian 8.1%
White 7.5%
African American 4.9%
Two or More 2.4%
American Indian / Alaska Native 0.4%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 76.6% of enrollment.
Student-body diversity index 39.8/100
Simpson diversity index - at 39.8, Sst Discovery is less mixed than the Texas school average of 44.7.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for School of Science and Technology Discovery, which includes Sst Discovery.
$10,485
Per student
-23%
vs Texas
Avg $13,644
-37%
vs U.S.
Avg $16,593
Revenue mix
Local 2.3%
State 84.3%
Federal 13.5%
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 Sst Discovery Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sst Corpus Christi | Larger | Similar economic need | Higher S:T ratio |
| Sst Sugarland | Larger | Similar economic need | Higher S:T ratio |
| Sst Hill Country | Larger | Lower economic need | Similar S:T ratio |
| Sst Northwest | Larger | Lower economic need | Higher S:T ratio |
| Sst Advancement | Larger | Higher economic need | Higher S:T ratio |
Comparisons are relative to Sst Discovery's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,343
- Students per teacher
- 14.1:1
- Resource Index
- 51/100
- Enrollment
- 739
- Students per teacher
- 14.2:1
- Resource Index
- 60/100
- Enrollment
- 675
- Students per teacher
- 11.8:1
- Resource Index
- 61/100
- Enrollment
- 661
- Students per teacher
- 13.2:1
- Resource Index
- 61/100
- Enrollment
- 646
- Students per teacher
- 12.7:1
- Resource Index
- 60/100
Similar other 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 (~508 students)
Similar student-teacher ratio (~11:1)
Next steps
Verify locally before acting on Sst Discovery's federal record.
- Compare Sst Discovery against another school. Compare schools
- School of Science and Technology Discovery'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 Sst Discovery
How many students attend Sst Discovery?
Sst Discovery has 508 students enrolled. It is a public school in San Antonio, TX.
What is the student-teacher ratio at Sst Discovery?
The student-teacher ratio at Sst Discovery is 11:1, which is 25% lower than the Texas average of 14.7:1 and 30% 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 Sst Discovery?
61.1% of students at Sst Discovery are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Sst Discovery?
The largest demographic group at Sst Discovery is Hispanic or Latino at 76.6% of enrollment, in San Antonio, TX.
What is the Resource Investment Index for Sst Discovery?
Sst Discovery has a Resource Investment Index of 45/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sst Discovery rank among schools in San Antonio?
By Resource Investment Index, Sst Discovery ranks #93 of 327 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 schools in San Antonio on the city page.
Is Sst Discovery a good school?
Sst Discovery earns 45/100 on the Resource Investment Index, with class sizes smaller than 85% 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 School of Science and Technology Discovery?
Besides Sst Discovery, School of Science and Technology Discovery also operates Sst Corpus Christi (2,343 students), Sst Sugarland (739 students), and Sst Hill Country (675 students). See the School of Science and Technology Discovery 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.