Enrollment
368
Texas · 2024-25 NCES data
Other / mixed grade configuration · San Antonio, TX
Federal NCES profile for Robert B Green El, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
The verdict
Robert B Green El earns 47/100 on the Resource Investment Index, with class sizes larger than 99% of Texas schools. It is also less racially and ethnically mixed than most Texas schools.
Robert B Green El has class sizes larger than 99% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Robert B Green El ranks #69 of 327 schools in San Antonio, TX.
NCES ID 483873004389 Verify on NCES CCD record →
Enrollment
368
Texas · 2024-25 NCES data
Teachers (FTE)
10.0
Federal CCD staff survey
Students per teacher
36.8:1
vs 14.7:1 Texas avg
+150% vs state
Free-lunch eligible
88.2%
vs 61.9% Texas avg
+42% vs state
How Robert B Green El compares with Texas and U.S. medians
Larger classes than state median
36.8:1 - 22.1 above the Texas state median of 14.7:1, indicating larger average class loads than typical schools in the state.
Robert B Green El is a high-poverty, mid-sized combined-grade school in San Antonio, Texas, enrolling 368 students.
Class loads run heavy: 36.8:1 is larger than about 99% of Texas schools and 150% above the 14.7:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat above the state's typical profile, with 88.2% of students eligible for free meals.
Enrollment of 368 puts it in the smaller third of Texas schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 8,960 scored Texas schools.
Against 1,440 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #283.
Its student body is predominantly Hispanic or Latino (95% of enrollment), among the less diverse in the state (diversity index 10/100).
Counselor availability sits well past the ASCA benchmark, roughly 368 students sharing each counselor, though short of the most stretched campuses.
Attendance holds up well here: only 3.3% of students were chronically absent, below the typical post-pandemic national figure.
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 Robert B Green El.
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
Robert B Green El on the metrics families compare, against Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 36.8:1 | ▲ 150% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 88.2% | ▲ 42% | 61.9% | 51.7% |
| Enrollment | 368 | top 68% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 94.6% of enrollment.
Simpson diversity index - at 10.4, Robert B Green El is less mixed than the Texas school average of 44.7.
District-wide per-pupil expenditure for San Antonio Isd, which includes Robert B Green El.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Jefferson H S | Larger | Similar economic need | Lower S:T ratio |
| Lanier H S | Larger | Similar economic need | Lower S:T ratio |
| Brackenridge H S | Larger | Similar economic need | Lower S:T ratio |
| Highlands H S | Larger | Similar economic need | Lower S:T ratio |
| Burbank H S | Larger | Similar economic need | Lower S:T ratio |
Comparisons are relative to Robert B Green El's own figures; each column derives from NCES Common Core of Data.
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.
Next steps
Verify locally before acting on Robert B Green El's federal record.
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.
Robert B Green El has 368 students enrolled. It is a public school in San Antonio, TX.
The student-teacher ratio at Robert B Green El is 36.8:1, which is 150% higher than the Texas average of 14.7:1 and 134% higher than the national average of 15.7:1.
88.2% of students at Robert B Green El are eligible for free lunch, compared to the Texas average of 61.9%.
The largest demographic group at Robert B Green El is Hispanic or Latino at 94.6% of enrollment, in San Antonio, TX.
Robert B Green El has a Resource Investment Index of 47/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Robert B Green El ranks #69 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.
Robert B Green El earns 47/100 on the Resource Investment Index, with class sizes larger than 99% of Texas schools. It is also less racially and ethnically mixed than most 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.
Besides Robert B Green El, 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.
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.
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PlainSchools, “Robert B Green El, San Antonio TX.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/robert-b-green-el-tx
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