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St. Marys High School

Independent Catholic school · Grades 9–12

Lancaster, NY

142 Laverack Ave 2, Lancaster, NY 14086

Overall grade: B+

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

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

What stands out

  • 95% of graduates go to four-year colleges

In Lancaster, New York, St. Marys High School is an independent Catholic school for students from 9th grade through 12th grade. About 406 students attend, with roughly 13 students per teacher. The school is part of the Diocese of Buffalo. The school reports that about 95% of its graduates go on to four-year colleges. The school day runs about 6.5 hours, 180 days a year.

At a glance

Grades
Grades 9–12
Students
406
Teachers
31 (full-time equivalent)
Students per teacher
13.1
Boys and girls
Coed · 238 girls, 168 boys
Religious affiliation
Catholic · Independent Catholic school
School day
About 6.5 hours
School year
180 days
Graduates going to 4-year colleges
About 95% (the school's estimate for the class before the survey)
Library
Yes

Reviews

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    How it compares

    • Larger than 56% of Catholic high schools in New York.
    • Compared with 64 Catholic high schools in New York.

    Students by survey year

    381’11–12302’15–16302’17–18407’19–20406’23–24

    Total students reported in official records since 2011–12.

    Students by grade

    987
    10112
    11105
    12102

    Student body

    White88%
    Black4%
    Hispanic or Latino2%
    Asian2%
    Two or more races2%
    Native Hawaiian or Pacific Islander1%
    American Indian or Alaska Native0%

    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?

    More questions to ask →

    Questions about St. Marys High School

    What grades does St. Marys High School serve?

    St. Marys High School serves grades 9–12.

    How many students attend St. Marys High School?

    About 406 students, with 13 students per teacher, according to official records.

    How much is tuition at St. Marys 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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