International School of America vs Jackson-Keller El
A head-to-head comparison of two schools in Texas, United States, 423 m apart, using official American 2025 data. The better value in each row is highlighted.
International School of America
San Antonio · Public high · Grades 9–12
493 students
Jackson-Keller El
San Antonio · Public elementary · Grades K–5
552 students
| Measure | International School of America San Antonio, Texas | Jackson-Keller El San Antonio, Texas |
|---|---|---|
| Success Index (US) | 73 Top 25% | 27 Lower 50% |
| State rank | #171 of 1,419 | #3990 of 4,686 |
| National rank | #2623 of 16,910 | #40655 of 50,301 |
| Sector | Public | Public |
| Type | High | Elementary |
| Year range | Grades 9–12 | Grades K–5 |
| Students | 493 | 552 |
| Enrollment | 493 | 552 |
| Free/reduced-price lunch | 22.3% | 92.9% |
| Students per teacher | 21.4 | 14.5 |
| Reading proficiency | 87% | 33% |
| Math proficiency | 54.5% | 34% |
| city | San Antonio | San Antonio |
| state | Texas | Texas |
| Website | – | – |
The verdict
- •International School of America scores higher on the Success Index (US) (72.8 vs 26.6).
- •International School of America does better on math proficiency (54.5% vs 34%).
- •International School of America does better on reading proficiency (87% vs 33%).
- •International School of America does better on community advantage (fewer free/reduced-price lunch) (22.3% vs 92.9%).
- •Jackson-Keller El does better on students per teacher (14.5 vs 21.4).
- •Jackson-Keller El is the larger school with 552 students compared with 493.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
Is International School of America better than Jackson-Keller El?
On the Success Index (US), International School of America ranks higher (72.8 vs 26.6 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are International School of America and Jackson-Keller El?
About 423 m in a straight line, between San Antonio and San Antonio in Texas.
Which has the better Enrollment?
International School of America: 493. Jackson-Keller El: 552. Students enrolled in the latest NCES directory year.
How do International School of America and Jackson-Keller El rank in Texas?
International School of America is 171st of 1,419 and Jackson-Keller El is 3990th of 4,686 among high schools in Texas on the 2025 Success Index (US).