Enrollment
528
Texas · 2024-25 NCES data
Other / mixed grade configuration · San Antonio, TX
Carnahan El
Federal NCES profile for Carnahan El, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 48/100.
2024-25 NCES dataOther / mixed grade configurationNCES 483312011863
👥 S:T ratio 48
🌟 Gifted program 70
🎓 Counselors 47
📋 Attendance 28
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Carnahan El earns 48/100 on the Resource Investment Index, with class sizes near the Texas median. It is also more racially and ethnically mixed than most Texas schools.
- #61 of 327
- schools in San Antonio · Resource Index
- 48
- Resource Index · Typical
- 12.9:1
- students per teacher
- 75.7%
- free-lunch eligible
Carnahan El has class sizes near the Texas median. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Carnahan El ranks #61 of 327 schools in San Antonio, TX.
School address
District: Northside Isd · Texas
NCES ID 483312011863 Verify on NCES CCD record →
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
12.9:1
vs 14.7:1 Texas avg
-12% vs state
Free-lunch eligible
75.7%
vs 61.9% Texas avg
+22% vs state
Student-teacher ratio in context
How Carnahan El compares with Texas and U.S. medians
What stands out at Carnahan El
Carnahan El is a high-poverty, mid-sized combined-grade school in San Antonio, Texas, enrolling 528 students.
Class sizes run a bit leaner than typical: 12.9:1 puts it in the smaller third of Texas schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 75.7% of students eligible for free meals.
With 528 students, its enrollment sits close to the Texas median campus size.
Its Resource Investment Index lands in the upper third of 8,960 scored Texas schools.
Against 2,093 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #297.
Its student body is led by Hispanic or Latino (47%) and White (18%), more mixed than most schools in the state (diversity index 70/100).
Counselor coverage runs a bit thin, about 264 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 28.8% 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.
Northside Isd also operates Brennan H S (2,965 students) and Harlan H S (2,778 students) alongside Carnahan 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
How Carnahan El compares
Carnahan 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 | 12.9:1 | ▼ 12% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 75.7% | ▲ 22% | 61.9% | 51.7% |
| Enrollment | 528 | top 46% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.9:1
Leaner classes than 68% of US schools, among the more generously staffed nationally.
528
Bigger than 65% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
75.7%
free-lunch eligible
- 22% 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
12.9:1
students per teacher
- 12% below state mean
Top 33% in Texas - lower ratio than 67% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
28.8%
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
Counselors2.0 FTE
Per 264 students, the combined health-and-guidance staffing load for this school.
Discipline context
21
in-school suspensions + 2 out-of-school
Suspension rate: 4.0 per 100 students. Combined in-school and out-of-school rate: 4.4 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 47.2%
White 17.6%
Asian 16.1%
Two or More 11.6%
African American 7.4%
American Indian / Alaska Native 0.2%
Largest group: Hispanic or Latino at 47.2% of enrollment.
Student-body diversity index 70.1/100
Simpson diversity index - at 70.1, Carnahan El is more mixed than the Texas school average of 44.7.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Northside Isd, which includes Carnahan El.
$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 Carnahan El Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Brennan H S | Larger | Lower economic need | Higher S:T ratio |
| Harlan H S | Larger | Lower economic need | Higher S:T ratio |
| Clark H S | Larger | Lower economic need | Higher S:T ratio |
| Taft H S | Larger | Lower economic need | Higher S:T ratio |
| Brandeis H S | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Carnahan El'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
- 2,750
- Students per teacher
- 16.9:1
- Resource Index
- 37/100
- 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
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 (~528 students)
Similar student-teacher ratio (~12.9:1)
Next steps
Verify locally before acting on Carnahan El's federal record.
- Compare Carnahan El 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 Carnahan El
How many students attend Carnahan El?
Carnahan El has 528 students enrolled. It is a public school in San Antonio, TX.
What is the student-teacher ratio at Carnahan El?
The student-teacher ratio at Carnahan El is 12.9:1, which is 12% lower than the Texas average of 14.7:1 and 18% 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 Carnahan El?
75.7% of students at Carnahan El are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Carnahan El?
The largest demographic group at Carnahan El is Hispanic or Latino at 47.2% of enrollment, in San Antonio, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 70.1/100.
What is the Resource Investment Index for Carnahan El?
Carnahan El has a Resource Investment Index of 48/100 (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).
How does Carnahan El rank among schools in San Antonio?
By Resource Investment Index, Carnahan El ranks #61 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 Carnahan El a good school?
Carnahan El earns 48/100 on the Resource Investment Index, with class sizes near the Texas median. It is also more 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.
What other schools are in Northside Isd?
Besides Carnahan El, Northside Isd also operates Brennan H S (2,965 students), Harlan H S (2,778 students), and Clark H S (2,750 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.