Keystone School

119 E Craig Pl,
San Antonio, TX, 78212-0782
Tel: (210)735-4022
Grades: K - 12 | 437 students
Keystone School has been a haven for bright, motivated students since 1948.
The mission of Keystone School is to offer an accelerated K-12 curriculum to provide motivated students with a nationally recognized, well-rounded educational experience in a supportive, inclusive environment that encourages academic excellence, ethical growth, community involvement, and responsible leadership.
Through a strong academic curriculum, the school challenges students to develop diligence, independence, self-discipline, responsibility, and inquisitiveness.
The educational culture of Keystone encourages students to pursue independent thought and research in a balanced environment.
Working collaboratively in the high school, students continue to demonstrate to each other the value of acquiringknowledge, developing strong study habits, and mastering research skills.

School Overview

School Membership(s)School Assoc. National Association of Independent Schools (NAIS)
Religious Affiliation Nonsectarian
Grades Offered Grades Kindergarten - 12
Year Founded 1948

Student Body

Total Students 437 students
Student Body Type Co-ed
% Students of Color 53%
State avg.: 34%
Students by Grade Keystone School Students by Grade

Academics and Faculty

Total Classroom Teachers 37 teachers
Student : Teacher Ratio 12:1
National avg.: 13:1
Number of AP Courses 9 courses
Average SAT score 2083
Average ACT score 31
Matriculation DataMatric. Data Link to Matriculation Data
Classroom Dress Code Casual

Finances and Admission

Admission Deadline Feb. 1 / rolling
Tuition Notes You can view Keystone's tuition schedule at
% on Financial Aid 17%
Admissions Director Jessica Cihal


Total Sports Offered 7 sports
Sports Basketball, Golf, Lacrosse, Soccer, Softball, Tennis, VolleyballBasketballGolf,

Nearby Schools:

The nearest high school is St. Anthony Catholic High School (0.5 miles away)
The nearest elementary school is San Antonio Academy Of Texas (0.1 miles away)
The nearest preschool is San Antonio Academy Of Texas (0.1 miles away)
 All Schools  |High Schools High Schools  |Elementary Schools Elementary Schools  |Preschools Preschools  |Public Schools Public Schools 
Show me:
  • School Location Miles Students Grades
  • San Antonio San Antonio Academy Of Texas
    All-boys  (Christian)
    117 E French Pl
    San Antonio , TX , 78212
    All-boys  (Christian)
    0.1  mi  |   students  |  Gr.  PK-8
  • San Antonio
    St. Anthony Catholic School
    (Roman Catholic)
    205 W Huisache Ave
    San Antonio , TX , 78212
    (Roman Catholic)
    0.3  mi  |  385  students  |  Gr.  K-9
  • San Antonio
    Kriterion Montessori School
    Montessori School
    611 West Ashby Place
    San Antonio , TX , 78212
    Montessori School
    0.4  mi  |  119  students  |  Gr.  PK-8
  • San Antonio
    St. Anthony Catholic High School
    (Roman Catholic)
    3200 Mccullough Avenue
    San Antonio , TX , 78212
    (Roman Catholic)
    0.5  mi  |  413  students  |  Gr.  9-12
  • San Antonio
    Central Catholic High School
    All-boys  (Roman Catholic)
    1403 N St Marys
    San Antonio , TX , 78215
    All-boys  (Roman Catholic)
    1.2  mi  |  547  students  |  Gr.  9-12

School Reviews

  • Recommended July 27, 2013 - This school is the most amazing school in Texas, and one of the best in the entire United States. Look into the statistics on student performance and you will be amazed: average SAT around 2100, average student score of 4.5 on an average of 8 AP tests, 50% or more National Merit commendations per year. These numbers are crazily impressive. Also, the school is close to 60% non Anglo.The school has a reputation for being a math science school. It is great in these subjects, but also in every other subject, including visual and performing arts and foreign languages. You have to visit to understand all that happens there, and to experience the culture that embraces learning more than anything else. - Posted by Parent

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