Trinity High School
Diocesan school · Grades 9–12
Manchester, NH
581 Bridge St, Manchester, NH 31045
Overall grade: A+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- AClass size
- A-College-going
- A-Years serving families
- B+Diversity
What stands out
- The smallest classes of any Catholic school in Manchester
- One of the 3 largest Catholic schools in New Hampshire
- The largest Catholic school in Manchester
- Smaller classes than 81% of Catholic schools nationwide
- 92% of graduates go to four-year colleges
Trinity High School is a Catholic diocesan school in Manchester, New Hampshire, for students from 9th grade through 12th grade. It has about 327 students and around 9 students per teacher, smaller classes than 81% of Catholic high schools nationwide. 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 92% of its graduates go on to four-year colleges. Students attend about 7.5 hours a day, 185 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
- 327
- Teachers
- 35.8 (full-time equivalent)
- Students per teacher
- 9.1
- Boys and girls
- Coed · 135 girls, 192 boys
- Religious affiliation
- Catholic · Diocesan school
- Diocese
- Diocese of Manchester
- School day
- About 7.5 hours
- School year
- 185 days
- Graduates going to 4-year colleges
- About 92% (the school's estimate for the class before the survey)
Reviews
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How it compares
- Smaller classes than 81% of Catholic high schools nationwide (9 students per teacher).
- A smaller school: fewer students than 62% 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
Help paying tuition in New Hampshire
These state programs can help pay private school tuition. Only participating schools can accept them, so ask Trinity 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 Trinity High School
What grades does Trinity High School serve?
Trinity High School serves grades 9–12.
How many students attend Trinity High School?
About 327 students, with 9 students per teacher, according to official records.
How much is tuition at Trinity 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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