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Gann Academy-The New Jewish High School

Jewish day school · Grades 9–12

Waltham, MA

333 Forest St, Waltham, MA 02452

Overall grade: A

ChooseAPrivateSchool.com grade, from official facts compared with similar schools.

  • A-Class size
  • ACollege-going
  • A-Years serving families
  • B+Diversity

What stands out

  • The only Jewish school in Waltham
  • One of the 3 largest Jewish day schools in Massachusetts
  • 99% of graduates go to four-year colleges
  • Small classes: about 7 students per teacher
  • Serving families in Waltham since at least 2011

Gann Academy-The New Jewish High School is a Jewish private school in Waltham, Massachusetts, for students from 9th grade through 12th grade. It has about 351 students and around 7 students per teacher. Its enrollment has held steady since 2011–12. The school reports that about 99% of its graduates go on to four-year colleges. Students attend about 8.5 hours a day, 170 days a year.

At a glance

Grades
Grades 9–12
Students
351
Teachers
47.6 (full-time equivalent)
Students per teacher
7.4
Boys and girls
Coed · 180 girls, 171 boys
Religious affiliation
Jewish
School day
About 8.5 hours
School year
170 days
Graduates going to 4-year colleges
About 99% (the school's estimate for the class before the survey)
Library
Yes

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    How it compares

    • Larger than 93% of Jewish high schools nationwide.
    • Compared with 252 Jewish high schools nationwide.

    Students by survey year

    331’11–12314’13–14277’15–16282’17–18267’19–20321’21–22351’23–24

    Total students reported in official records since 2011–12.

    Students by grade

    985
    1087
    1198
    1281

    Student body

    White90%
    Two or more races6%
    Hispanic or Latino3%
    Asian1%
    Black0%

    Member of

    • Prizmah: Center for Jewish Day Schools
    • 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?

    More questions to ask →

    Questions about Gann Academy-The New Jewish High School

    What grades does Gann Academy-The New Jewish High School serve?

    Gann Academy-The New Jewish High School serves grades 9–12.

    How many students attend Gann Academy-The New Jewish High School?

    About 351 students, with 7 students per teacher, according to official records.

    How much is tuition at Gann Academy-The New Jewish 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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