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International School of America

San Antonio, Texas · Grades 9 to 12 · North East ISD

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About International School of America

International School of America is a public school in San Antonio, Texas, serving grades 9 through 12. Enrollment was 493 in the 2024-25 school year. That is about average in size for public and charter high schools in San Antonio. With about 23 full-time-equivalent teachers, that works out to roughly 21.4 students per teacher. Federal data from 2021-22 lists it as a magnet school. North East ISD runs 73 schools listed here, including this one. See them all. The surrounding area is classified as a large city, in Bexar County. Families comparing options will find 120 other schools within 5 miles.

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School facts

Address	1400 Jackson Keller Rd, San Antonio, TX 78213
Phone	(210) 356-0900
School district	North East ISD
Grades	9 to 12
Students (2024-25)	493
Teachers (full-time equivalent, 2024-25)	23
Students per teacher	21.4
Charter school	No
Magnet school	Yes, based on the most recent federal magnet data (2021-22)
School type	Regular
Level	High
Locale (NCES)	City, large, Bexar County

Source: NCES Common Core of Data (CCD), 2024-25 public school directory and membership files (NCES school ID 483294007513). Details may have changed since the survey. Schools can update them by claiming this profile.

Nearby schools

Legacy of Educational Excellence High SchoolPublic · Grades 9 to 12San Antonio · under 0.1 mi Jackson-Keller ElementaryPublic · Grades K to 5San Antonio · 0.3 mi River City Christian SchoolPrivate, Christian (nondenominational) · Grades 1 to 12San Antonio · 0.6 mi Nimitz MiddlePublic · Grades 6 to 8San Antonio · 0.7 mi Olmos ElementaryPublic · Grades PreK to 5San Antonio · 0.7 mi Mount Sacred Heart SchoolPrivate, Roman Catholic · Grades PreK to 8San Antonio · 0.8 mi Castle Hills ElementaryPublic · Grades PreK to 5San Antonio · 1 mi Somerset Academy Lone StarCharter · Grades K to 5San Antonio · 1.1 mi

The 8 closest public, charter and private schools by straight-line distance, from NCES location data. Listings here are never paid.

Frequently asked questions

What grades does International School of America serve?

International School of America serves grades 9 through 12.

How many students attend International School of America?

International School of America reported 493 students in 2024-25, according to the NCES Common Core of Data.

What is the student-teacher ratio at International School of America?

About 21.4 students per full-time-equivalent teacher, based on 493 students and 23 teachers in federal data.

Is International School of America a public or charter school?

International School of America is a traditional public (non-charter) school.

What school district is International School of America in?

International School of America is part of North East ISD. See all schools in this district at https://parentschoolreview.com/districts/tx/north-east-isd/

Where is International School of America located?

International School of America is at 1400 Jackson Keller Rd, San Antonio, TX 78213. The phone number is (210) 356-0900.

How many other schools are near International School of America?

There are 120 other schools within 5 miles of International School of America in our directory.