Enrollment
2,371
Texas · 2024-25 NCES data
High school (grades 9-12) · San Marcos, TX
San Marcos H S
Federal NCES profile for San Marcos H S, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 63/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 483897004452
👥 S:T ratio 42
📚 AP courses 100
🌟 Gifted program 70
🎓 Counselors 41
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
San Marcos H S earns 63/100 on the Resource Investment Index, with class sizes near the Texas median. It is also one of the largest schools in Texas.
- #4 of 15
- public schools in San Marcos · Resource Index
- 63
- Resource Index · Higher
- 14.5:1
- students per teacher
- 74.3%
- free-lunch eligible
San Marcos H S has class sizes near the Texas median. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, San Marcos H S ranks #4 of 15 public schools in San Marcos, TX.
School address
District: San Marcos Cisd · Texas
NCES ID 483897004452 Verify on NCES CCD record →
Teachers (FTE)
163.0
Federal CCD staff survey
Students per teacher
14.5:1
vs 14.7:1 Texas avg
-1% vs state
Free-lunch eligible
74.3%
vs 61.9% Texas avg
+20% vs state
Student-teacher ratio in context
How San Marcos H S compares with Texas and U.S. medians
What stands out at San Marcos H S
San Marcos H S is a higher-need, large high school in San Marcos, Texas, enrolling 2,371 students.
At 14.5:1, 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.
Economic need runs somewhat above the state's typical profile, with 74.3% of students eligible for free meals.
By headcount it is one of the larger campuses in Texas, bigger than 98% of state schools at 2,371 students.
Its Resource Investment Index lands in the upper third of 8,960 scored Texas schools.
Against 164 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #21.
Its student body is led by Hispanic or Latino (72%) and White (19%) (diversity index 44/100).
On the academic-pipeline side it reports 25 Advanced Placement courses.
Counselor coverage runs a bit thin, about 296 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
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: 604 in- and out-of-school suspensions were reported for 2,371 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 12 expulsions at this campus for 2021-22.
San Marcos Cisd also operates Miller Middle (896 students) and Goodnight Middle (884 students) alongside San Marcos 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 San Marcos H S compares
San Marcos 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 | 14.5:1 | ▼ 1% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 74.3% | ▲ 20% | 61.9% | 51.7% |
| Enrollment | 2,371 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.5:1
Leaner classes than 52% of US schools, a middle-of-the-pack class size.
2,371
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
74.3%
free-lunch eligible
- 20% 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
14.5:1
students per teacher
- 1% below state mean
Top 53% in Texas - lower ratio than 47% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Funding equity
$11,826
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
Counselors8.0 FTE
Per 296 students, the combined health-and-guidance staffing load for this school.
Discipline context
377
in-school suspensions + 227 out-of-school
Suspension rate: 15.9 per 100 students. Combined in-school and out-of-school rate: 25.5 per 100 students. Reported via the Civil Rights Data Collection. Includes 12 expulsions.
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 72.2%
White 19.1%
African American 5.3%
Two or More 2.1%
Asian 0.8%
Native Hawaiian / Pacific Islander 0.3%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 72.2% of enrollment.
Student-body diversity index 43.9/100
Simpson diversity index - at 43.9, San Marcos H S is about as mixed as the Texas school average of 44.7.
Programs
AP courses offered 25
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for San Marcos Cisd, which includes San Marcos H S.
$11,826
Per student
-13%
vs Texas
Avg $13,644
-29%
vs U.S.
Avg $16,593
Revenue mix
Local 71.5%
State 9.2%
Federal 19.3%
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 San Marcos H S Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Miller Middle | Smaller | Similar economic need | Higher S:T ratio |
| Goodnight Middle | Smaller | Similar economic need | Similar S:T ratio |
| Dezavala El | Smaller | Similar economic need | Lower S:T ratio |
| Bowie El | Smaller | Similar economic need | Higher S:T ratio |
| Hernandez El | Smaller | Lower economic need | Similar S:T ratio |
Comparisons are relative to San Marcos H S's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 896
- Students per teacher
- 16:1
- Resource Index
- 43/100
- Enrollment
- 884
- Students per teacher
- 14.3:1
- Resource Index
- 52/100
- Enrollment
- 584
- Students per teacher
- 12.7:1
- Resource Index
- 38/100
- Enrollment
- 580
- Students per teacher
- 17.1:1
- Resource Index
- 44/100
- Enrollment
- 577
- Students per teacher
- 13.1:1
- Resource Index
- 55/100
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 (~2,371 students)
Similar student-teacher ratio (~14.5:1)
Next steps
Verify locally before acting on San Marcos H S's federal record.
- Compare San Marcos H S against another school. Compare schools
- San Marcos Cisd'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 San Marcos H S
How many students attend San Marcos H S?
San Marcos H S has 2,371 students enrolled. It is a high school in San Marcos, TX.
What is the student-teacher ratio at San Marcos H S?
The student-teacher ratio at San Marcos H S is 14.5:1, which is 1% lower than the Texas average of 14.7:1 and 8% 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 San Marcos H S?
74.3% of students at San Marcos H S are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of San Marcos H S?
The largest demographic group at San Marcos H S is Hispanic or Latino at 72.2% of enrollment, in San Marcos, TX.
What is the Resource Investment Index for San Marcos H S?
San Marcos H S has a Resource Investment Index of 63/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does San Marcos H S rank among public schools in San Marcos?
By Resource Investment Index, San Marcos H S ranks #4 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.
Is San Marcos H S a good school?
San Marcos H S earns 63/100 on the Resource Investment Index, with class sizes near the Texas median. It is also one of the largest schools in Texas. 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 Marcos Cisd?
Besides San Marcos H S, San Marcos Cisd also operates Miller Middle (896 students), Goodnight Middle (884 students), and Dezavala El (584 students). See the San Marcos Cisd 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.