Kellenberg Memorial High School

The Kellenberg Memorial High School course of studies has been drawn up in conformity with the school's consistent policy of promoting the greatest intellectual competence together with the highest moral character.
The scope of the curriculum provides for a liberal education which meets the most stringent of college entrance requirements.
Kellenberg Memorial High School is registered by the Board of Regents of the University of the State of New York, accredited by the Middle States Association of Colleges and Schools, and a full member of the New York State Association of Independent Schools.

Quick Facts (2026)

  • Top-Ranked NY School
  • Grades: 6-12
  • Enrollment: 2,512 students
  • Yearly Tuition: $20,000
  • Average class size: 20 students
  • Application Deadline: None / Rolling
  • Source: National Center for Education Statistics (NCES)

Top Rankings

Kellenberg Memorial High School ranks among the top 20% of private schools in New York for:

Category
Attribute
Student Body

School Overview

School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades 6-12
Year Founded
1987
Colors
Royal blue, Gold
School Calendar
Campus Size
21 acres

Student Body

Total Students
2,512 students
Student Body Type
Co-ed
% Students of Color
22%
State avg.: 39%
Students by Grade

Academics and Faculty

Total Classroom Teachers
137 teachers
Student-Teacher Ratio
18:1
National avg.: 11:1
Average Class Size
20 students
Number of AP/Advanced Courses
20 courses

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Yearly Tuition Cost
Application URL
Endowment Size
$10 million

School Notes

  • School Motto: One Heart and One Mind
  • School Mascot: The Firebirds
  • The Kellenberg Memorial High School course of studies has been drawn up in conformity with the school's consistent policy of promoting the greatest intellectual competence together with the highest moral character. The scope of the curriculum provides for a liberal education which meets the most stringent of college entrance requirements. Kellenberg Memorial High School is registered by the Board of Regents of the University of the State of New York, accredited by the Middle States Association of Colleges and Schools, and a full member of the New York State Association of Independent Schools.
  • Sample of notable school alumni/alumnae:
    • Natasha Cox-Magno - Education Doctorate Degree, Class of 1989.
Source: National Center for Education Statistics (NCES)

Frequently Asked Questions

How much does Kellenberg Memorial High School cost?
Kellenberg Memorial High School's tuition is approximately $20,000 for private students.
What schools are Kellenberg Memorial High School often compared to?
Kellenberg Memorial High School is often viewed alongside schools like Holy Trinity Diocesan High School by visitors of our site.
Who are famous alumni from Kellenberg Memorial High School?
Kellenberg Memorial High School famous alumni include: Natasha Cox-Magno - Education Doctorate Degree, Class of 1989..
What is Kellenberg Memorial High School's ranking?
Kellenberg Memorial High School ranks among the top 20% of private schools in New York for: Largest student body and Most AP courses offered.
When is the application deadline for Kellenberg Memorial High School?
The application deadline for Kellenberg Memorial High School is rolling (applications are reviewed as they are received year-round).

School Reviews

5  
Kellenberg provided me with the best education I could have asked for. I am currently enrolled in the number one ranked Physician Assistant program in the country and I owe my success largely to Kellenberg. They created a solid educational and moral foundation to start my life on.
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Quick Facts (2026)

  • Top-Ranked NY School
  • Grades: 6-12
  • Enrollment: 2,512 students
  • Yearly Tuition: $20,000
  • Average class size: 20 students
  • Application Deadline: None / Rolling
  • Source: National Center for Education Statistics (NCES)

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Did You Know?

The average private school tuition in Nassau County, NY is $21,802 for elementary schools and $21,748 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Nassau County, NY is 75% (read more about average acceptance rates across the country).

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