Keystone School

Keystone School

Private Pre-K, Elementary, Middle, High School | Grade Pre-K-12
119 E Craig Plz,  San Antonio, TX
4.3
3.8
495 Students
A+
Niche Grade

School Details

Head of School
Brian Yager
Student Teacher Ratio
9:1
Average SAT Score
1430
Average ACT Score
33
Average GPA
3.82
Graduation Rate
100%
Annual Tuition
$26,470

Niche Grade

A+
Academics
A
Teachers
A+
College Prep
A
Resources/Facilities
A-
Clubs and Activities
C+
Sports
Source: Niche
Niche Grades

Niche grades and rankings are calculated using dozens of public data sets and millions of reviews. Niche data scientists and user researchers rigorously analyze data and user opinions to assess the key aspects of K-12 Schools, Colleges, and Places to Live. Every month, millions of students and families use the Niche grades and report cards to find the right school or neighborhood.

Niche Grade Details

Academics
Average GPA
3.82
Teachers
Student Teacher Ratio
9:1
Teachers
58
Full Time Teachers
54
Part Time Teachers
4
Teachers in First or Second Year
0%
College Prep
Average SAT
1430
Math
700
Verbal
720
Average ACT
33
Math
30
English
34
Reading
34
Science
32
Number of AP Courses
19
AP Pass Rate
88%
AP Math Enrollment
Very High
AP Science Enrollment
Very High
Other AP Enrollment
Very High
Four-Year Matriculation Rate
100%
Clubs and Activities
Girls Athletic Participation
High
Boys Athletic Participation
High

GreatSchools Rating Details

Student Diversity

White
46.3%
Asian or Pacific Islander
21.9%
Hispanic
16%
Two or more races
11.4%
Black
4.3%

School Rankings

#7 Best College Prep Private High Schools in Texas
#8 Best HS For Stem in Texas
#8 Best Private K12 Schools in Texas
Source: Niche

Specialty School Programs

Athletics Program

Colleges Students are Considering

Students are most interested in or go on to attend these colleges.
University of Texas - Austin 60 Students
Rice University 45 Students
Trinity University 33 Students
University of Chicago 28 Students
Stanford University 26 Students
Columbia University 25 Students
Harvard University 25 Students
Texas A&M University 23 Students
Northwestern University 23 Students
Vanderbilt University 23 Students

What Students Want to Study

Niche users from this school are most interested in the following majors.
Biology 34 Students
Business 22 Students
Pre-Medicine Studies 21 Students
Psychology 18 Students
Computer Science 17 Students
Bioengineering and Biomedical Engineering 13 Students
Engineering 12 Students
Biochemistry and Molecular Biology 12 Students
Political Science and Government 11 Students
Chemistry 10 Students

This School’s Reviews

Niche Reviews
4.3 70 Reviews
5.0 Parent
8/8/2025
Keystone has been a great educational experience within a supportive and family like environment. We feel lucky to have such a wonderful school to help inspire our children to become their best selves.
5.0 Parent
5/9/2025
Keystone is a wonderful community with welcome families. Academically the kids are challenged. Additionally kids learn extremely important social skills at a young age.
5.0 Parent
4/29/2025
Keystone is an amazing school that prepares students for their higher educational pursuits as well as for life in general.
GreatSchools Reviews
3.8 19 Reviews
3.0 parent
10/27/2025
I can echo what other reviewers have said regarding the administration. The environment is small and ripe for learning. But the administration has ego, and the inability to self-reflect which is a major concern for a school to be able to stay successful. The stories have heard first privately that h...
3.0 parent
9/25/2024
Keystone is strong academically. Maybe too much homework…but they will get your child ready for the rigors of college. Full stop.However their school administration is a disaster. $25k/year and the posted schedule conflicts with reality. We had to scramble for childcare on more than one occasion. Th...
5.0 parent
8/1/2022
My daughter attended Keystone and as a retired teacher I have worked at the school. Keystone is very nurturing environment with exceptional dedicated teachers and staff. My child was well prepared for the academic challenges of college.
5.0 parent
4/22/2022
Our son has been at Keystone since preschool and is now in middle school, where he's thriving academically, emotionally and even athletically. Some teachers are definitely better than others, but we have been very pleased overall. As long as this school continues to be a good fit for him, we'll glad...

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Keystone School is a private school for students in grades Pre-K-12 located at 119 E Craig Plz in San Antonio, TX. Annual tuition is $26,470. The school has a total enrollment of 495 students and maintains a student-teacher ratio of 9:1. Keystone School has received feedback and ratings, with a Niche grade of A+. The average GPA is 3.82, the graduation rate is 100%, and average standardized test scores include an SAT score of 1430 and an ACT score of 33. The average home value in this area is $745,240. Discover additional schools in the area, like Central Catholic High School, Incarnate Word High School, Providence Catholic School, and more. Learn more about what San Antonio has to offer, and browse homes for sale and for rent near Keystone School.

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