Enrollment
896
Texas · 2024-25 NCES data
Middle school (grades 6-8) · San Marcos, TX
Federal NCES profile for Miller Middle, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
The verdict
Miller Middle earns 43/100 on the Resource Investment Index, with class sizes larger than 71% of Texas schools.
Miller Middle has class sizes larger than 71% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Miller Middle ranks #6 of 15 public schools in San Marcos, TX.
NCES ID 483897017035 Verify on NCES CCD record →
Enrollment
896
Texas · 2024-25 NCES data
Teachers (FTE)
56.0
Federal CCD staff survey
Students per teacher
16:1
vs 14.7:1 Texas avg
+9% vs state
Free-lunch eligible
72.1%
vs 61.9% Texas avg
+16% vs state
How Miller Middle compares with Texas and U.S. medians
Slightly above state median
16:1 - 1.3 above the Texas state median of 14.7:1, indicating larger average class loads than typical schools in the state.
Miller Middle is a higher-need, large middle school in San Marcos, Texas, enrolling 896 students.
Class loads run somewhat heavier than typical: 16:1 puts it in the larger third of Texas schools by student-teacher ratio.
Its free-meal eligibility rate of 72.1% lands close to the Texas typical range, neither a high- nor low-need campus by this measure.
Enrollment of 896 puts it in the larger third of Texas schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 8,960 scored Texas schools.
Against 1,330 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #376.
Its student body is led by Hispanic or Latino (63%) and White (29%) (diversity index 52/100).
Counselor coverage runs a bit thin, about 299 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 29.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 19.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 248 in- and out-of-school suspensions were reported for 896 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 4 expulsions at this campus for 2021-22.
San Marcos Cisd also operates San Marcos H S (2,371 students) and Goodnight Middle (884 students) alongside Miller Middle.
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
Miller Middle on the metrics families compare, against Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16:1 | ▲ 9% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 72.1% | ▲ 16% | 61.9% | 51.7% |
| Enrollment | 896 | top 14% | - | - |
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 63.1% of enrollment.
Simpson diversity index - at 51.7, Miller Middle is more mixed than the Texas school average of 44.7.
District-wide per-pupil expenditure for San Marcos Cisd, which includes Miller Middle.
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 |
|---|---|---|---|
| San Marcos H S | Larger | Similar economic need | Lower S:T ratio |
| Goodnight Middle | Similar size | Higher economic need | Lower S:T ratio |
| Dezavala El | Smaller | Higher economic need | Lower S:T ratio |
| Bowie El | Smaller | Similar economic need | Similar S:T ratio |
| Hernandez El | Smaller | Lower economic need | Lower S:T ratio |
Comparisons are relative to Miller Middle'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 Miller Middle'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.
Miller Middle has 896 students enrolled. It is a middle school in San Marcos, TX.
The student-teacher ratio at Miller Middle is 16:1, which is 9% higher than the Texas average of 14.7:1 and 2% higher than the national average of 15.7:1.
72.1% of students at Miller Middle are eligible for free lunch, compared to the Texas average of 61.9%.
The largest demographic group at Miller Middle is Hispanic or Latino at 63.1% of enrollment, in San Marcos, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 51.7/100.
Miller Middle has a Resource Investment Index of 43/100 (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, Miller Middle ranks #6 of 15 public schools in San Marcos, TX. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in San Marcos on the city page.
Miller Middle earns 43/100 on the Resource Investment Index, with class sizes larger than 71% 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.
Besides Miller Middle, San Marcos Cisd also operates San Marcos H S (2,371 students), Goodnight Middle (884 students), and Dezavala El (584 students). See the San Marcos Cisd 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, “Miller Middle, San Marcos 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/miller-middle-tx
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