St. Thomas is a Catholic high school that prepares tomorrow's leaders by offering an academically challenging education in a wholesome, diverse environment.
Our ambitious students excel in academic and co-curricular programs and contribute to the school community and the wider community through service.
St Thomas promises its students a high school experience in a community that values their individual skills and talents.
St. Thomas further promises its students a commitment to prepare them for college and beyond by providing them the means to study, perform and have fun in a culture of shared academic and spiritual values.
Quick Stats (2025)
- Top Ranked NH School
- Grades: 9-12
- Enrollment: 414 students
- Yearly Tuition: $16,100
- Acceptance rate: 100%
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
St. Thomas Aquinas High School ranks among the top 20% of private schools in New Hampshire for:
Category
Attribute
Student Body
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades 9-12
Year Founded
1960
School Calendar
First Day of School
Fri. Aug 1, 2025
Last Day of School
Fri. May 1, 2026
School Mascot
Bernie Saint Bernard
Student Body
Total Students
414 students
Student Body Type
Co-ed
% Students of Color
7%
State avg.: 17%
Students by Grade

Academics and Faculty
Total Classroom Teachers
33 teachers
Student : Teacher Ratio
13:1
National avg.: 13:1
Number of AP Courses
12 courses
List of Courses Offered
Average SAT score
1186
(Out of 1600)
Average ACT score
25
(Out of 36)
School Colors
White, Navy Blue
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
Yearly Tuition Cost
$16,100
Acceptance Rate
100%
National avg.: 81%
Admissions Director
Daniel M. Richer, Ed.D.
Admissions Associate
Lisa Puffer
Application URL
Sports
Total Sports Offered
16 sports
School Notes
- St. Thomas is a Catholic high school that prepares tomorrow's leaders by offering an academically challenging education in a wholesome, diverse environment. Our ambitious students excel in academic and co-curricular programs and contribute to the school community and the wider community through service. St Thomas promises its students a high school experience in a community that values their individual skills and talents. St. Thomas further promises its students a commitment to prepare them for college and beyond by providing them the means to study, perform and have fun in a culture of shared academic and spiritual values.
- Sample of notable school alumni/alumnae:
- Cody Morissette - Drafted by the Miami Marlins, professional baseball player -
Source: Verified school update
Frequently Asked Questions
How much does St. Thomas Aquinas High School cost?
St. Thomas Aquinas High School's tuition is approximately $16,100 for private students.
What is the acceptance rate of St. Thomas Aquinas High School?
The acceptance rate of St. Thomas Aquinas High School is 100%, which is higher than the national average of 70%.
Who are famous alumni from St. Thomas Aquinas High School?
St. Thomas Aquinas High School famous alumni include: Cody Morissette - Drafted by the Miami Marlins, professional baseball player.
What sports does St. Thomas Aquinas High School offer?
St. Thomas Aquinas High School offers 16 interscholastic sports: Alpine Skiing, Baseball, Basketball, Cross Country, Diving, Field Hockey, Football, Golf, Ice Hockey, Lacrosse, Soccer, Softball, Swimming, Tennis, Track and Field and Volleyball.
What is St. Thomas Aquinas High School's ranking?
St. Thomas Aquinas High School ranks among the top 20% of private schools in New Hampshire for: Largest student body.
When is the application deadline for St. Thomas Aquinas High School?
The application deadline for St. Thomas Aquinas High School is rolling (applications are reviewed as they are received year-round).
School Reviews
5 10/28/2024
While your overview Of STA is accurate, there is information that needs updating: tuition cost, director of admissions, and the admissions associate. We love STA, the amazing faculty, education, after-school activities, and the Catholic experience!
Endorse St. Thomas Aquinas High School. Endorsements should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
- Academic or athletic awards
Recent Articles

3 Tips for an Effective Private School Job Search
Get hired at a top private school! Learn how to boost your marketability, explore teaching overseas, and match your qualifications to the job. Stand out from the crowd and land your dream teaching job with these expert tips.

Being an Expat and Educating Your Children Abroad
If you have the chance to move overseas, don't worry about educating your children. You have several options.

Podcasts That Will Change the Way You Think About Education
This article highlights a curated selection of podcasts that offer thought-provoking discussions, expert insights, and innovative ideas on various aspects of education. From exploring new teaching methods and technologies to discussing policy changes and social issues, these podcasts provide a wealth of knowledge and inspiration for anyone interested in education. Each podcast is briefly described, highlighting its unique focus and tone.