Upper School

Keystone’s accelerated college-prep program pairs high academic standards & extracurricular options making it the best private high school in San Antonio.

Accelerated curriculum to unleash unlimited potential

There is no place like Keystone. We take curious, highly motivated students, and give them an exceptional education. We guide their growth as healthy individuals and activate their concern for the world. Then, we provide them with in-depth college counseling. It’s no wonder that our students successfully compete for admission to the nation’s top colleges and universities.

Keystone High School Philosophy

Why is Keystone School the best private high school for your teen? We offer an accelerated college preparatory program with roots in the liberal arts tradition. We continually build our strong reputation for excellence in science, technology, engineering and math. Keystone’s robust academic curriculum features an honors level core and generous electives allowing students to advance their interests and new areas of inquiry.

For students to achieve academically, we understand that wellness is good grounding for their enduring success and personal fulfillment. Our wellness-minded philosophy permeates our educational approach and includes proactive wellness initiatives and immersive outdoor education. Doing well by being well is the Keystone way.

The Upper School Program

A balanced, healthy approach to high achievement for your 6th through 8th grade student.

Academics

Enrichment Activities

Outdoor Education

Wellness Initiatives

Keystone students serve the San Antonio community

Keystone students can only serve their full potential for positive impact when they develop as scholars and as well-rounded, caring individuals. Understanding and serving their local community is an essential part of students’ education in Upper School. Students are expected to participate in community service every year. These are ways that students serve the community beyond Keystone:

The Foreign Language Club works with local charities against domestic violence and in international efforts with the Heifer Project.
National Honor Society works through a variety of initiatives, helping with the Rock and Roll Marathon, MLK March, Habitat for Humanity and the Leukemia and Lymphoma Society.
Students devote half a day before spring break helping out with nonprofit organizations, such as San Antonio Pets Alive, San Antonio Parks and Recreation, the DoSeum and the San Antonio Food Bank. That day alone, students volunteered a total of more than 300 hours.

Through service, students gain exposure to community needs and take a responsible role to help. Community service helps Upper School students develop their leadership skills and prepare to make a future impact in San Antonio and beyond.

Explore Keystone

Tour the Upper School

Get acquainted with the campus facilities for Lower School children.

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