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The Post Oak School

Montessori school · Grades Pre-K–12

Houston, TX

1010 Autrey St, Houston, TX 77006

Overall grade: A

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

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

What stands out

  • One of the 3 largest Montessori schools in Texas
  • The largest Montessori school in Houston
  • 99% of graduates go to four-year colleges
  • Growing: enrollment up 19% since 2013–14
  • One school from pre-K through 12th grade

The Post Oak School is a Montessori school in Houston, Texas, for students from pre-K through 12th grade. It has about 340 students and around 9 students per teacher. Enrollment has grown about 19% since 2013–14. The school reports that about 99% of its graduates go on to four-year colleges. Students attend about 10 hours a day, 169 days a year. Texas has programs that can help pay tuition; ask the school whether it takes part.

At a glance

Grades
Grades Pre-K–12
Students
340
Teachers
38 (full-time equivalent)
Students per teacher
8.9
Boys and girls
Coed · 184 girls, 156 boys
Religious affiliation
None (nonsectarian)
Program
Montessori
School day
About 10 hours
School year
169 days
Graduates going to 4-year colleges
About 99% (the school's estimate for the class before the survey)
Library
Yes

Reviews

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    How it compares

    • Larger than 73% of Montessori schools in Texas.
    • Compared with 15 Montessori schools in Texas.

    Students by survey year

    285’13–14366’17–18353’19–20355’21–22340’23–24

    Total students reported in official records since 2013–14.

    Students by grade

    Pre-K140
    K37
    133
    234
    319
    427
    528
    624
    728
    823
    924
    1018
    1122
    1223

    Student body

    White46%
    Asian20%
    Two or more races18%
    Hispanic or Latino13%
    Black2%
    American Indian or Alaska Native0%

    Member of

    • Association Montessori Internationale
    • National Association of Independent Schools

    Help paying tuition in Texas

    These state programs can help pay private school tuition. Only participating schools can accept them, so ask The Post Oak School whether it takes part.

    More about Texas's programs →

    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 The Post Oak School

    What grades does The Post Oak School serve?

    The Post Oak School serves grades Pre-K–12.

    How many students attend The Post Oak School?

    About 340 students, with 9 students per teacher, according to official records.

    How much is tuition at The Post Oak School?

    Call the school to ask about tuition, financial aid and payment plans. Texas has programs that can help pay private school tuition; ask whether the school takes part.

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

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