Enrollment
493
Texas · 2024-25 NCES data
High school (grades 9-12) · San Antonio, TX
International School of America
Federal NCES profile for International School of America, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 57/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 483294007513
👥 S:T ratio 55
📚 AP courses 35
🌟 Gifted program 70
🎓 Counselors 51
📋 Attendance 72
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
International School of America earns 57/100 on the Resource Investment Index, with class sizes smaller than 83% of Texas schools.
- #11 of 79
- high schools in San Antonio · Resource Index
- 57
- Resource Index · Higher
- 11.2:1
- small classes for Texas
- 20.4%
- free-lunch eligible
International School of America has class sizes smaller than 83% of Texas schools. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, International School of America ranks #11 of 79 high schools in San Antonio, TX.
School address
District: North East Isd · Texas
NCES ID 483294007513 Verify on NCES CCD record →
Teachers (FTE)
44.0
Federal CCD staff survey
Students per teacher
11.2:1
vs 14.7:1 Texas avg
-24% vs state
Free-lunch eligible
20.4%
vs 61.9% Texas avg
-67% vs state
Student-teacher ratio in context
How International School of America compares with Texas and U.S. medians
What stands out at International School of America
International School of America is a mid-sized high school in San Antonio, Texas, enrolling 493 students.
Class sizes run a bit leaner than typical: 11.2:1 puts it in the smaller third of Texas schools by student-teacher ratio.
Comparatively few students face economic hardship here, 20.4% free-meal eligibility runs 67% below the Texas average.
With 493 students, its enrollment sits close to the Texas median campus size.
Its Resource Investment Index outscores 94% of the 8,960 Texas schools with a score on record, a top-tier result on this measure.
Among 591 similarly sized, similarly resourced-need Texas schools statewide, it ranks #14, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (56%) and White (35%) (diversity index 57/100).
On the academic-pipeline side it reports 7 Advanced Placement courses.
Counselor coverage is strong, about 247 students per counselor, inside the American School Counselor Association's recommended 250:1.
11.2% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding North East Isd spends $10,753 per pupil, 21% below the Texas average, a leaner-resourced district than most.
Its district draws 15.2% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
North East Isd also operates Reagan H S (3,403 students) and Johnson H S (3,196 students) alongside International School of America.
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 International School of America compares
International School of America on the metrics families compare, against Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.2:1 | ▼ 24% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 20.4% | ▼ 67% | 61.9% | 51.7% |
| Enrollment | 493 | top 51% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.2:1
Leaner classes than 82% of US schools, among the more generously staffed nationally.
493
Bigger than 61% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
20.4%
free-lunch eligible
- 67% below the Texas average of 61.9%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
11.2:1
students per teacher
- 24% below state mean
Top 17% in Texas - lower ratio than 83% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
11.2%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$10,753
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 247 students, the combined health-and-guidance staffing load for this school.
Discipline context
8
in-school suspensions + 1 out-of-school
Suspension rate: 1.6 per 100 students. Combined in-school and out-of-school rate: 1.8 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 55.6%
White 35.1%
Two or More 4.1%
African American 2.6%
Asian 2.2%
American Indian / Alaska Native 0.2%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 55.6% of enrollment.
Student-body diversity index 56.5/100
Simpson diversity index - at 56.5, International School of America is more mixed than the Texas school average of 44.7.
Programs
AP courses offered 7
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for North East Isd, which includes International School of America.
$10,753
Per student
-21%
vs Texas
Avg $13,644
-35%
vs U.S.
Avg $16,593
Revenue mix
Local 70.2%
State 14.5%
Federal 15.2%
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 International School of America Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Reagan H S | Larger | Similar economic need | Higher S:T ratio |
| Johnson H S | Larger | Similar economic need | Higher S:T ratio |
| Madison H S | Larger | Higher economic need | Higher S:T ratio |
| Roosevelt H S | Larger | Higher economic need | Higher S:T ratio |
| Churchill H S | Larger | Higher economic need | Higher S:T ratio |
Comparisons are relative to International School of America's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,403
- Students per teacher
- 18.3:1
- Resource Index
- 47/100
- Enrollment
- 3,196
- Students per teacher
- 18:1
- Resource Index
- 43/100
- Enrollment
- 2,616
- Students per teacher
- 15.7:1
- Resource Index
- 38/100
- Enrollment
- 2,431
- Students per teacher
- 13.9:1
- Resource Index
- 53/100
- Enrollment
- 2,308
- Students per teacher
- 14.5:1
- Resource Index
- 42/100
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 (~493 students)
Similar student-teacher ratio (~11.2:1)
Next steps
Verify locally before acting on International School of America's federal record.
- Compare International School of America against another school. Compare schools
- North East 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 International School of America
How many students attend International School of America?
International School of America has 493 students enrolled. It is a high school in San Antonio, TX.
What is the student-teacher ratio at International School of America?
The student-teacher ratio at International School of America is 11.2:1, which is 24% lower than the Texas average of 14.7:1 and 29% 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 International School of America?
20.4% of students at International School of America are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of International School of America?
The largest demographic group at International School of America is Hispanic or Latino at 55.6% of enrollment, in San Antonio, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 56.5/100.
What is the Resource Investment Index for International School of America?
International School of America has a Resource Investment Index of 57/100 (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 International School of America rank among high schools in San Antonio?
By Resource Investment Index, International School of America ranks #11 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 International School of America a good school?
International School of America earns 57/100 on the Resource Investment Index, with class sizes smaller than 83% 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.
What other schools are in North East Isd?
Besides International School of America, North East Isd also operates Reagan H S (3,403 students), Johnson H S (3,196 students), and Madison H S (2,616 students). See the North East 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.