The Catholic High School on the Seacoast
St. Thomas Aquinas High SchoolWho Was St. Thomas Aquinas?
St. Thomas Aquinas was the greatest of the Scholastic philosophers. He produced a comprehensive synthesis of Christian theology and Aristotelian philosophy that influenced Roman Catholic doctrine for centuries and was adopted as the official philosophy of the church in 1917.
Learn MoreSt. Thomas Aquinas
is a college preparatory private high school equipping students in faith and reason. With a rigorous curriculum, values formation, and opportunities to grow, students at STA thrive in their God-given gifts — ready to impact the world.
Light In Darkness
ST. THOMAS AQUINAS HIGH SCHOOL
Explore why STA is one of the top private high schools in the Seacoast Region.
Rigorous
College-Prep CurriculumThe robust core subject offerings and specials offered at STA prepare students for the academic challenges of college and beyond. The Center for Academic Achievement and School Counseling Department are great resources to foster academic skills while gaining knowledge about college admission processes. Through our program, graduates develop the skills to be critical thinkers, independent learners, and effective communicators.
In addition to enrichment offerings year-round, STA students have a seasonal term to explore and dive deep into courses that spark their interest. Financial Management, Scuba Diving, Japanese Culture, and Comparative Vertebrate Anatomy are just some of the many unique courses that ignite every student’s passions and gifts.
Academic
EnrichmentCollege
Admission AgreementOne of our distinct programs offers students academic scholarships and guaranteed admissions to one of the thirteen colleges and universities in New Hampshire and beyond. This is our way of recognizing students who have undergone four years of rigorous preparation and displayed tremendous talent and leadership in their learning experience.
Learning extends beyond academics. Our students have multiple opportunities to develop their God-given gifts while forging friendships through our competitive athletics, fine arts specials, block clubs, after school clubs, special events, and more.
Extracurricular
ActivitiesCommunity
CelebrationWe foster a positive atmosphere that awakens every student’s faith through community service, campus ministry, prayer, and monthly Catholic mass. As a result, STA graduates lead lives that reflect integrity, kindness, empathy, and a heart dedicated to serving others.
At STA, You Are Known.
Explore the exciting possibilities for your teen at St. Thomas Aquinas High School. Download your Parent Info Packet to learn more.
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A high school that enriches and inspires.
“Our daughter was ‘welcomed home’ as if she always belonged at the school. She integrated with her classmates seamlessly, formed immediate bonds with her teachers, and joined many after-school activities. She jumps at the opportunity to volunteer for community service events and understands that being a part of STA means having a responsibility to the community.”
Keith & Jennifer Tode, STA Parents
News & Articles
View AllPray the STA Way – Advent Week 2
Daily Advent Reflections The second candle is lit on the Advent Wreath. It is called the…
STA Announces 2024-25 First Quarter Honor Roll
Congratulations to our Saints who earned a spot on the 2024-25 First Quarter Honor Roll! Their…
Pray the STA Way – Advent Week 1
Daily Advent Reflections Hope: Prophecy Candle (purple) For the first week of Advent, we reflect…
Support STA Today!
For over 60 years, St. Thomas Aquinas High School has provided exceptional faith-focused education…
Meet the Cast and Crew of Our Town, Plus Our Sponsors!
Described by Edward Albee as “the greatest American play ever written,” Our…
STA Announces 2023-24 4th Quarter Honor Roll
Congratulations to our Saints who earned a spot on the 2023-24 4th Quarter Honor Roll! Their…
Meet the Cast and Crew of The Addams Family: School Edition, Plus Our Sponsors!
The Addams Family, a comical feast that embraces the wackiness in every family, features an…
2024 STA Lenten Challenge
The Lenten season is a 40 day period that prepares us to celebrate the joy of the Lord’s…
Student Spotlight: Ryan Whiting ’24
St. Thomas Aquinas High School current senior and member of the Class of 2024, Ryan Whiting, had…
Alumni Spotlight: Elizabeth Nevins, ’99, P ’26, ’27
St. Thomas Aquinas High School Class of 1999 alum, Elizabeth Nevins, had the opportunity to sit…