Skip to main content
GSA is Now Enrolling for Fall 2025

Now Enrolling for Fall 2025

Learn More
Don't show again

Gateway Science Academy of St. Louis - High Home

hs-cover

Gateway Science Academy of St. Louis - High is a non-selective and tuition-free public charter school located in St. Louis. GSA - High serves grades 9-12. Our STEM-focused and college-preparatory curriculum is designed to change the trajectory of students’ lives.

hs-cover-1

GSA Fyler Events Calendar

Senior Sunset

Date:
Time: 7:45 PM – 8:30 PM
Location: Art Hill, 35-43 Fine Arts Dr, St. Louis, MO 63110, USA

Senior Graduation

Date:
Time: 6:30 PM – 8 PM
Location: Chaminade College Preparatory School, 425 S Lindbergh Blvd, St. Louis, MO 63131, USA
Show All Events

Recent News

gsa_ami_day

GSA AMI DAY

Due to winter weather advisory , all GSA campuses will hold a virtual learning day today, Wednesday, February 19th.
Show All News
  • Authorized by Missouri Charter Public School Commission
  • Managed by Concept Schools
  • Accredited by Network Accreditation by Cognia
  • Certified by STEM Certified by Cognia
  • Named as US News - Best High School
GSA Fyler students playing instruments

Welcome

Welcome to our school! We believe that parent participation is key to student success; our new website is designed to provide parents with all the information they need to be active participants in their student’s education. You will find that the site works just as well on mobile devices as it does on a desktop so you can find information on the go.
Read More Welcome
GSA Fyler student in science class

About Us

The Mission of our school is to provide a safe and enriching learning environment where the whole student is nurtured and developed. Our teachers and administrators pledge to support the academic and emotional wellbeing of each and every student. Students will leave our school prepared with skills and knowledge that will give them advantages throughout their future educational and life experiences.
Read More About Us

At A Glance

  • 2012 Founded
  • 9-12 Grades Served
  • 400 Target Enrollment
  • 1:1 Technology
high-apply-now-1
high-apply-now-2
concept schools