International School of San Antonio
Independent school · Grades Pre-K–3
San Antonio, TX
6739 Callaghan Rd, San Antonio, TX 78229
Overall grade: A-
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- AClass size
- B-Years serving families
What stands out
- Smaller classes than 74% of independent schools in Texas
International School of San Antonio is an independent private school in San Antonio, Texas, for students from pre-K through 3rd grade. It has about 20 students and around 5 students per teacher, smaller classes than 74% of independent elementary schools in Texas. Students attend about 7.5 hours a day, 180 days a year. Texas has programs that can help pay tuition; ask the school whether it takes part.
At a glance
- Grades
- Grades Pre-K–3
- Students
- 20
- Teachers
- 4.3 (full-time equivalent)
- Students per teacher
- 4.7
- Boys and girls
- Coed · 9 girls, 11 boys
- Religious affiliation
- None (nonsectarian)
- Program
- Special program emphasis
- School day
- About 7.5 hours
- School year
- 180 days
Reviews
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How it compares
- Smaller classes than 74% of independent elementary schools in Texas (5 students per teacher).
- A smaller school: fewer students than 81% of independent elementary schools in Texas.
- Compared with 68 independent elementary schools in Texas.
Students by grade
Student body
Help paying tuition in Texas
These state programs can help pay private school tuition. Only participating schools can accept them, so ask International School of San Antonio whether it takes part.
- Texas Education Freedom Accounts (TEFA) · Education savings account
Questions to ask on a tour
- What is tuition, and what does it include (books, fees, uniforms, trips)?
- Do you offer financial aid, sibling discounts or payment plans?
- Do you accept ESA, voucher or tax-credit scholarship funds?
- How big are classes in my child's grade?
- What support is there for students who need extra help or more challenge?
- Is the school accredited, and by whom?
- What do a typical day and a typical week look like?
- How does the school communicate with families?
Questions about International School of San Antonio
What grades does International School of San Antonio serve?
International School of San Antonio serves grades Pre-K–3.
How many students attend International School of San Antonio?
About 20 students, with 5 students per teacher, according to official records.
How much is tuition at International School of San Antonio?
Call the school to ask about tuition, financial aid and payment plans. Texas has programs that can help pay private school tuition; ask whether the school takes part.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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