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Castle Island Bilingual Montessori

Montessori school · Grades Pre-K–4

Albany, NY

602 Broadway, Albany, NY 12207

Overall grade: A

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

  • A+Class size
  • B+Years serving families

What stands out

  • Smaller classes than 88% of Montessori schools in New York

Castle Island Bilingual Montessori is a Montessori school in Albany, New York, for students from pre-K through 4th grade. It has about 21 students and around 3 students per teacher, smaller classes than 88% of Montessori elementary schools in New York. Enrollment has grown about 250% since 2013–14. The school supports homeschooling families. Students attend about 7.5 hours a day, 180 days a year.

At a glance

Grades
Grades Pre-K–4
Students
21
Teachers
6.8 (full-time equivalent)
Students per teacher
3.1
Boys and girls
Coed · 11 girls, 10 boys
Religious affiliation
None (nonsectarian)
Program
Montessori
School day
About 7.5 hours
School year
180 days
Library
Yes
Supports homeschooling
Yes, a main role of this school

Reviews

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    How it compares

    • Smaller classes than 88% of Montessori elementary schools in New York (3 students per teacher).
    • A smaller school: fewer students than 73% of Montessori elementary schools in New York.
    • Compared with 33 Montessori elementary schools in New York.

    Students by survey year

    6’13–141’15–1615’17–1813’19–2014’21–2221’23–24

    Total students reported in official records since 2013–14.

    Students by grade

    Pre-K33
    K8
    14
    26
    32
    41

    Student body

    White48%
    Hispanic or Latino33%
    Black10%
    Asian5%
    Two or more races5%

    Member of

    • American Montessori Society

    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 Castle Island Bilingual Montessori

    What grades does Castle Island Bilingual Montessori serve?

    Castle Island Bilingual Montessori serves grades Pre-K–4.

    How many students attend Castle Island Bilingual Montessori?

    About 21 students, with 3 students per teacher, according to official records.

    How much is tuition at Castle Island Bilingual Montessori?

    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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