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Atrium School

Independent school · Grades Pre-K–8

Watertown, MA

69 Grove St, Watertown, MA 02472

Overall grade: A+

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

  • A-Class size
  • B+Years serving families
  • ADiversity

What stands out

  • Smaller classes than 64% of independent schools in Massachusetts
  • Growing: enrollment up 28% since 2013–14

In Watertown, Massachusetts, Atrium School is an independent private school for students from pre-K through 8th grade. About 110 students attend, with roughly 5 students per teacher, smaller classes than 64% of independent elementary schools in Massachusetts. Enrollment is up about 28% since 2013–14. The school day runs about 7 hours, 160 days a year.

At a glance

Grades
Grades Pre-K–8
Students
110
Teachers
20.9 (full-time equivalent)
Students per teacher
5.3
Boys and girls
Coed · 53 girls, 57 boys
Religious affiliation
None (nonsectarian)
School day
About 7 hours
School year
160 days
Library
Yes

Reviews

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    How it compares

    • Smaller classes than 64% of independent elementary schools in Massachusetts (5 students per teacher).
    • Larger than 52% of independent elementary schools in Massachusetts.
    • Compared with 56 independent elementary schools in Massachusetts.

    Students by survey year

    86’13–14126’15–16123’17–18110’19–20117’21–22110’23–24

    Total students reported in official records since 2013–14.

    Students by grade

    Pre-K7
    K7
    113
    212
    313
    411
    513
    616
    717
    88

    Student body

    White65%
    Asian11%
    Hispanic or Latino10%
    Black7%
    Two or more races7%

    Member of

    • National Association of Independent Schools
    • A state or regional independent school 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?

    More questions to ask →

    Questions about Atrium School

    What grades does Atrium School serve?

    Atrium School serves grades Pre-K–8.

    How many students attend Atrium School?

    About 110 students, with 5 students per teacher, according to official records.

    How much is tuition at Atrium School?

    Call the school to ask about tuition, financial aid and payment plans.

    Official record · Updated October 2026 · Official search · Something wrong? Tell us

    Other private schools nearby

    Shady Hill School

    Independent school · Grades Pre-K–8

    Small classes: about 7 students per teacher

    Cambridge, MA0.8 mi

    A-Overall grade496 students7 students per teacher