International School of America.
Free facts about this school, with sources and years. Want the 5-year story behind the numbers? That's what members get.
About this school.
International School of America is a public high school in San Antonio, Texas, serving grades 09–12. It enrolled 493 students in 2024. 99.2% of the cohort graduated in four years (2024) and 50% reached math proficiency and 82% reached reading proficiency in 2024-2025 state testing. The school performs at or above the state median in math (2024-2025). The pupil–teacher ratio was 21.41 to 1 (2025).
What the numbers say.
Every figure below is an officially reported fact with its year. Comparison bars pit this school against district, state, and U.S. medians. Figures marked xx are member-only fields — same catalog, values kept back for members.
Pupil–teacher ratio. A staffing ratio, not class size.
Academic outcomes
Math proficiency
Students meeting the grade-level math standard
Source year 2024-2025
Reading proficiency
Reading and writing proficiency
Source year 2024-2025
4-year graduation rate
Cohort graduation rate
Source year 2024
Science proficiency
Science assessment proficiency
Member-only field
Staff & support
Full-time equivalent teaching staff.
Reported teaching staff
Counselors
Support-staff FTE · member-only rows
Attendance & climate
Source year 2023
Source year 2025
Class size & programs
Average students per class, reported by the school
Reported programs
Programs the school reports offering this year
Program flags as reported
Equity
Source year 2024
Source year 2024
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This school performs at or above the state median in math (2024-2025). This school performs at or above the state median in reading (2024-2025). We publish peer-relative facts only — no ratings, no rankings.
Where students come from — and go next.
Schools this one is reported to receive students from, or send students to. Reported relationships only — not guaranteed progression or attendance eligibility.
Students typically arrive from
Elementary schools · 4
Middle schools · 3
Prekindergarten schools · 1
Questions about International School of America.
What grades does International School of America serve?
International School of America is a high school serving grades 09–12.
Where is International School of America located?
International School of America is in San Antonio, Texas. Its reported address is 1400 JACKSON KELLER RD.
How many students attend International School of America?
493 students were enrolled in 2024.
How big are classes at International School of America?
The pupil–teacher ratio was 21.41 to 1. That is a staffing ratio, not the same as class size — see the class-size chart on this page.
What is the graduation rate at International School of America?
99.2% of the cohort graduated in four years (2024).
How do students score at International School of America?
50% reached math proficiency and 82% reached reading proficiency in 2024-2025 state testing.
How does International School of America compare to other Texas schools?
This school performs at or above the state median in mathematics (2024-2025).
What programs does International School of America offer?
The school reports: Advanced Placement (7 courses), gifted program. Full course-level detail is a member extra.
Do you rank or rate schools?
No — never. We publish reported facts with their sources and years. Anyone selling you a single score is selling an opinion, not data.
How current is this information?
Every fact carries its year, shown beside the value. This page reflects release v2026.07.
Can I get the full dataset for International School of America?
This page is the free record. Full school rows and API entry are paid — see API access.
Check the original record.
The full directory record for this school, as reported. Anything we don't hold is left out — never filled in.
INTERNATIONAL SCHOOL OF AMERICA
Directory facts as reported to the source. This page reflects release v2026.07.
122 fields. This page shows the highlights.
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