Enrollment
2,750
Texas · 2024-25 NCES data
High school (grades 9-12) · San Antonio, TX
Clark H S
Federal NCES profile for Clark H S, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 483312003722
👥 S:T ratio 32
📚 AP courses 100
🌟 Gifted program 70
🎓 Counselors 31
📋 Attendance 13
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Clark H S earns 49/100 on the Resource Investment Index, with class sizes larger than 79% of Texas schools. It is also one of the largest schools in Texas.
- #54 of 79
- high schools in San Antonio · Resource Index
- 49
- Resource Index · Higher
- 16.9:1
- large classes for Texas
- 36.4%
- free-lunch eligible
Clark H S has class sizes larger than 79% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Clark H S ranks #54 of 79 high schools in San Antonio, TX.
School address
District: Northside Isd · Texas
NCES ID 483312003722 Verify on NCES CCD record →
Teachers (FTE)
163.0
Federal CCD staff survey
Students per teacher
16.9:1
vs 14.7:1 Texas avg
+15% vs state
Free-lunch eligible
36.4%
vs 61.9% Texas avg
-41% vs state
Student-teacher ratio in context
How Clark H S compares with Texas and U.S. medians
What stands out at Clark H S
Clark H S is a large high school in San Antonio, Texas, enrolling 2,750 students.
Class loads run somewhat heavier than typical: 16.9:1 puts it in the larger third of Texas schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 36.4% of students eligible for free meals.
By headcount it is one of the larger campuses in Texas, bigger than 99% of state schools at 2,750 students.
Its Resource Investment Index lands in the lower third of 8,960 scored Texas schools.
Against 144 statewide peers matched on enrollment and economic need, it ranks mid-pack at #92.
Its student body is led by Hispanic or Latino (57%) and White (23%) (diversity index 61/100).
On the academic-pipeline side it reports 28 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 344 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 34.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Northside Isd spends $10,615 per pupil, 22% below the Texas average, a leaner-resourced district than most.
Its district draws 17.6% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
The federal civil-rights collection also records 5 expulsions at this campus for 2021-22.
Northside Isd also operates Brennan H S (2,965 students) and Harlan H S (2,778 students) alongside Clark 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 Clark H S compares
Clark 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 | 16.9:1 | ▲ 15% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 36.4% | ▼ 41% | 61.9% | 51.7% |
| Enrollment | 2,750 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.9:1
Leaner classes than 31% of US schools, heavier class loads than most.
2,750
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
36.4%
free-lunch eligible
- 41% below the Texas average of 61.9%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
16.9:1
students per teacher
- 15% above state mean
Top 79% in Texas - lower ratio than 21% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
34.8%
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
$10,615
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 344 students, the combined health-and-guidance staffing load for this school.
Discipline context
278
in-school suspensions + 197 out-of-school
Suspension rate: 10.1 per 100 students. Combined in-school and out-of-school rate: 17.3 per 100 students. Reported via the Civil Rights Data Collection. Includes 5 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 57.2%
White 22.5%
Asian 7.9%
African American 7.1%
Two or More 5.1%
Native Hawaiian / Pacific Islander 0.3%
American Indian / Alaska Native 0.1%
Largest group: Hispanic or Latino at 57.2% of enrollment.
Student-body diversity index 60.8/100
Simpson diversity index - at 60.8, Clark H S is more mixed than the Texas school average of 44.7.
Programs
AP courses offered 28
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Northside Isd, which includes Clark H S.
$10,615
Per student
-22%
vs Texas
Avg $13,644
-36%
vs U.S.
Avg $16,593
Revenue mix
Local 60.8%
State 21.6%
Federal 17.6%
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 Clark H S Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Brennan H S | Similar size | Similar economic need | Similar S:T ratio |
| Harlan H S | Similar size | Lower economic need | Higher S:T ratio |
| Taft H S | Similar size | Similar economic need | Similar S:T ratio |
| Brandeis H S | Similar size | Lower economic need | Similar S:T ratio |
| Marshall H S | Similar size | Higher economic need | Similar S:T ratio |
Comparisons are relative to Clark H S's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,965
- Students per teacher
- 16.9:1
- Resource Index
- 32/100
- Enrollment
- 2,778
- Students per teacher
- 18.9:1
- Resource Index
- 38/100
- Enrollment
- 2,670
- Students per teacher
- 16.6:1
- Resource Index
- 43/100
- Enrollment
- 2,657
- Students per teacher
- 16.8:1
- Resource Index
- 41/100
- Enrollment
- 2,634
- Students per teacher
- 16.4:1
- Resource Index
- 43/100
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 (~2,750 students)
Similar student-teacher ratio (~16.9:1)
Next steps
Verify locally before acting on Clark H S's federal record.
- Compare Clark H S against another school. Compare schools
- Northside 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 Clark H S
How many students attend Clark H S?
Clark H S has 2,750 students enrolled. It is a high school in San Antonio, TX.
What is the student-teacher ratio at Clark H S?
The student-teacher ratio at Clark H S is 16.9:1, which is 15% higher than the Texas average of 14.7:1 and 8% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Clark H S?
36.4% of students at Clark H S are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Clark H S?
The largest demographic group at Clark H S is Hispanic or Latino at 57.2% of enrollment, in San Antonio, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 60.8/100.
What is the Resource Investment Index for Clark H S?
Clark H S has a Resource Investment Index of 49/100 (higher 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 Clark H S rank among high schools in San Antonio?
By Resource Investment Index, Clark H S ranks #54 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 Clark H S a good school?
Clark H S earns 49/100 on the Resource Investment Index, with class sizes larger than 79% of Texas schools. 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 Northside Isd?
Besides Clark H S, Northside Isd also operates Brennan H S (2,965 students), Harlan H S (2,778 students), and Taft H S (2,670 students). See the Northside 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.