St. Joseph High School
Independent Catholic school · Grades 9–12
Metuchen, NJ
145 Plainfield Rd, Metuchen, NJ 08840
Overall grade: A
ChooseAPrivateSchool.com grade, from official facts compared with similar schools.
- B+Class size
- ACollege-going
- A-Years serving families
- A-Diversity
What stands out
- The only all-boys school in Metuchen
- 98% of graduates go to four-year colleges
- Serving families in Metuchen since at least 2011
St. Joseph High School is an independent Catholic school in Metuchen, New Jersey, for students from 9th grade through 12th grade. It has about 571 students and around 13 students per teacher. It has been listed in official private school records since 2011–12. The school is an all-boys school and is part of the Diocese of Metuchen. The school reports that about 98% of its graduates go on to four-year colleges. Students attend about 6.5 hours a day, 178 days a year.
At a glance
- Grades
- Grades 9–12
- Students
- 571
- Teachers
- 42.8 (full-time equivalent)
- Students per teacher
- 13.3
- Boys and girls
- All boys
- Religious affiliation
- Catholic · Independent Catholic school
- Diocese
- Diocese of Metuchen
- School day
- About 6.5 hours
- School year
- 178 days
- Graduates going to 4-year colleges
- About 98% (the school's estimate for the class before the survey)
- Library
- Yes
Reviews
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How it compares
- Larger than 66% 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 Catholic Educational Association
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. Joseph High School
What grades does St. Joseph High School serve?
St. Joseph High School serves grades 9–12.
How many students attend St. Joseph High School?
About 571 students, with 13 students per teacher, according to official records.
How much is tuition at St. Joseph High 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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