You'll Love to Learn Here.

For innovators, creators, builders and tinkerers who want a unique high school experience while preparing for college, career, and life. Apply to CAST STEM! Now accepting incoming 9th and 10th grade students for the 2023-2024 School Year.

Students at CAST STEM Graduation

Register Today!

Join San Antonio’s #1 Engineering High School and explore the world of STEM! 

From robots and cars to planes and drones, you’ll see it all. Visit places like CPS Energy, Texas A&M University-San Antonio and more.

If you love to build things or take things apart, or if you’re looking for a fun way to explore San Antonio, then join us.

Open to 6th – 8th grade students from across the San Antonio region. Breakfast will be available from 8:00-9:00 and lunch will be served from 11:00-12:00.

About Us

Created in partnership between Southwest ISD and CAST Schools, CAST STEM High School is a tuition-free, public school open to students across the greater San Antonio region.

Explore careers in STEM while growing your passion in Engineering, Advanced Manufacturing, Global Logistics, and Technology. Students learn to build and program robots, drones and electric cars and travel to competitions with teams. Students also have the opportunity to earn college credit, intern, travel, and earn industry recognized certificates.

Our Promise

We’re committed to providing every student with an educational experience that sets them up for their futures.

Explore Careers

To expose students to multiple careers through job-shadowing, internships and paid job opportunities.

Connect with Industry Leaders

To connect students with industry partners who act as mentors and motivators and who can help students map a pathway to their dream career.

Transferable College Credits

Access to earn transferable college credits to include Dual Credit Courses from local colleges and universities

Industry Recognized Certificates

Earn industry recognized certificates to elevate their resume in the workforce and to prepare students who will enter the workforce qualified to compete for jobs in high-demand, high-wage job markets.

Job Interview

To guarantee each student a job interview upon graduation.

Student Voice

To listen to student voice and feedback to ensure that we're delivering our promises.

Student Testimonials

"CAST STEM is a step into the real world with new experience. They show us how to ask for help from professionals in a field or study or people that can teach us more."
Alanna Seranno CAST STEM
12th Grade
"CAST STEM is the Future. Being here at CAST STEM, I've been able to express myself and experience real world situations."
10th Grade

Take a Tour

Want to learn more? Join our behind-the-scenes school tour now. Tour the campus, meet students and educators.