St. Thomas Aquinas High School
Diocesan school · Grades 9–12
Dover, NH
197 Dover Point Rd, Dover, NH 03820
Overall grade: A-
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A-Class size
- A-College-going
- A-Years serving families
- B+Diversity
What stands out
- One of the 3 largest Catholic schools in New Hampshire
- 90% of graduates go to four-year colleges
- Serving families in Dover since at least 2011
St. Thomas Aquinas High School is a Catholic diocesan school in Dover, New Hampshire, for students from 9th grade through 12th grade. It has about 354 students and around 12 students per teacher. It has been listed in official private school records since 2011–12. The school is part of the Diocese of Manchester. The school reports that about 90% of its graduates go on to four-year colleges. Students attend about 6.5 hours a day, 180 days a year. New Hampshire has programs that can help pay tuition; ask the school whether it takes part.
At a glance
- Grades
- Grades 9–12
- Students
- 354
- Teachers
- 29.5 (full-time equivalent)
- Students per teacher
- 12
- Boys and girls
- Coed · 181 girls, 173 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of Manchester
- School day
- About 6.5 hours
- School year
- 180 days
- Graduates going to 4-year colleges
- About 90% (the school's estimate for the class before the survey)
- Library
- Yes
Reviews
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How it compares
- Smaller classes than 52% of Catholic high schools nationwide (12 students per teacher).
- A smaller school: fewer students than 57% of Catholic high schools nationwide.
- Compared with 773 Catholic high schools nationwide.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Member of
- National Catholic Educational Association
Help paying tuition in New Hampshire
These state programs can help pay private school tuition. Only participating schools can accept them, so ask St. Thomas Aquinas High School whether it takes part.
- Education Freedom Accounts (EFA) · Education savings account
Questions to ask on a tour
- What is tuition, and what does it include (books, fees, uniforms, trips)?
- Do you offer financial aid, sibling discounts or payment plans?
- Do you accept ESA, voucher or tax-credit scholarship funds?
- How big are classes in my child's grade?
- What support is there for students who need extra help or more challenge?
- Is the school accredited, and by whom?
- What do a typical day and a typical week look like?
- How does the school communicate with families?
Questions about St. Thomas Aquinas High School
What grades does St. Thomas Aquinas High School serve?
St. Thomas Aquinas High School serves grades 9–12.
How many students attend St. Thomas Aquinas High School?
About 354 students, with 12 students per teacher, according to official records.
How much is tuition at St. Thomas Aquinas High School?
Call the school to ask about tuition, financial aid and payment plans. New Hampshire has programs that can help pay private school tuition; ask whether the school takes part.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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