Delbarton School
Independent Catholic school · Grades 7–12
Morristown, NJ
230 Mendham Rd, Morristown, NJ 07960
Overall grade: A+
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- A+Class size
- ACollege-going
- A-Years serving families
- A-Diversity
What stands out
- The only all-boys school in Morristown
- Smaller classes than 86% of Catholic schools in New Jersey
- The largest Catholic school in Morristown
- 100% of graduates go to four-year colleges
- Growing: enrollment up 17% since 2011–12
In Morristown, New Jersey, Delbarton School is an independent Catholic school for students from 7th grade through 12th grade. About 646 students attend, with roughly 8 students per teacher, smaller classes than 86% of Catholic high schools in New Jersey. Enrollment is up about 17% since 2011–12. The school is an all-boys school and is part of the Diocese of Paterson. The school reports that about 100% of its graduates go on to four-year colleges. The school day runs about 7 hours, 169 days a year.
At a glance
- Grades
- Grades 7–12
- Students
- 646
- Teachers
- 83.4 (full-time equivalent)
- Students per teacher
- 7.7
- Boys and girls
- All boys
- Religious affiliation
- Catholic · Independent Catholic school
- Diocese
- Diocese of Paterson
- School day
- About 7 hours
- School year
- 169 days
- Graduates going to 4-year colleges
- About 100% (the school's estimate for the class before the survey)
- Library
- Yes
Reviews
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How it compares
- Smaller classes than 86% of Catholic high schools in New Jersey (8 students per teacher).
- Larger than 74% of Catholic high schools in New Jersey.
- Compared with 35 Catholic high schools in New Jersey.
Students by survey year
Total students reported in official records since 2011–12.
Students by grade
Student body
Member of
- National Association of Independent Schools
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 Delbarton School
What grades does Delbarton School serve?
Delbarton School serves grades 7–12.
How many students attend Delbarton School?
About 646 students, with 8 students per teacher, according to official records.
How much is tuition at Delbarton School?
Call the school to ask about tuition, financial aid and payment plans.
Official record · Updated October 2026 · Official search · Something wrong? Tell us
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