The Knox School

The Knox School Photo #1 - Founded in 1904, The Knox School is Long Island`s oldest established private school. Our inclusive environment serves grades 6-12 and Post-Graduate, providing students with a broad world perspective and a wide range of skills to prepare them for the next phase of their journeys.
The Knox School Photo #1 - Founded in 1904, The Knox School is Long Island`s oldest established private school. Our inclusive environment serves grades 6-12 and Post-Graduate, providing students with a broad world perspective and a wide range of skills to prepare them for the next phase of their journeys.
The Knox School Photo #2 - At Knox, every student's potential is unlocked and maximized. We offer the highest levels of academic, artistic and athletic programming including Advanced Placement classes and dual-enrollment courses for college credit. Many Knox educators are also college professors, which guarantees that our students receive the highest levels of instruction and expertise.
The Knox School Photo #3 - Knox students are well-cared for in our supportive environment where everyone is family. Our dedicated educators know students beyond the walls of the classroom, and serve as dorm parents, advisors, coaches, and mentors.
The Knox School Photo #4 - Small class sizes allow students to receive the individual attention they deserve when investing in a private school education. Our state-of-the-art STEM lab is a gathering place for students to explore technology, computer science, and engineering.
The Knox School Photo #5 - Knox student artists explore diverse offerings in photography, media art, studio art, and ceramics with experienced faculty who are also practicing artists. Student artwork is proudly displayed in our on-campus art gallery and throughout the local community.
The Knox School Photo #6 - Knox student-performers develop their talents in the classroom with specialized classes in acting, music, and stagecraft - and then put those skills to work on stage with opportunities to perform in plays, musicals, concerts, and performing arts showcases throughout the year.
The Knox School Photo #7 - One of four elite sports programs on campus, the Knox crew team holds multiple world records and is home to Long Island's Coach of the Year. Knox's crew program offers year-round rowing opportunities with a fully equipped indoor erg center and waterfront boat launch.
The Knox School Photo #8 - Athletics are part of students' daily routines to promote both physical and mental health after an intense day of coursework. Knox Athletics emphasizes sportsmanship, responsibility, cooperation, teamwork and respect for others.
The Knox School Photo #9 - Founded in 1914, the Equestrian Program is Knox`s oldest, continuous sports activity. Our riders learn in our historic, horse-shoe-shaped equestrian center where students may choose to board their own horses or ride one of the many Knox horses and ponies. Our state-of-the-art riding ring was designed by industry leaders who created some of the finest show rings in the world.
The Knox School Photo #10 - At Knox, every student is inspired to go higher. Students and staff work together to build character and become responsible, global citizens. Our school community lives daily by the core values of Respect, Responsibility, Integrity, Courage, Kindness and Scholarship, and our graduates bring these values with them after high school, ready for every challenge that lies ahead.
THE KNOX SCHOOL is Long Island`s oldest established, co-educational private school.
Our inclusive environment serves grades 6-12 and Post-Graduate, providing students with a broad world perspective and a wide range of skills to prepare them for the next phase of their journeys.
At Knox, everyone knows your name, and each student`s potential is unlocked and maximized because of the boundless experiences a Knox education provides.
We are proud of our 100% graduate acceptance rate to top four-year universities.
Whether you are an aspiring engineer or entrepreneur, artist or architect, performer or physicist, a Knox education unlocks every student`s potential and prepares them for success after high school.

Quick Stats (2024)

  • Top Ranked NY School
  • Grades: 6-12
  • Enrollment: 118 students
  • Yearly Tuition: $27,000
  • Acceptance rate: 75%
  • Average class size: 12 students
  • Application Deadline: Jan. 31 / Dec. 15 / rolling
  • Source: Verified school update

Top Rankings

The Knox School ranks among the top 20% of private schools in New York for:

School History

School Overview

Student Body

Total Students
118 students
Student Body Type
% Students of Color
State avg.: 40%
Students by Grade
The Knox School Student By Grade

Academics and Faculty

Total Classroom Teachers
23 teachers
Student : Teacher Ratio
National avg.: 13:1
% Faculty w/Advanced Degree
Average Class Size
12 students
Number of AP Courses
32 courses
List of Courses Offered
Advanced Courses
AP Biology, AP Calculus AB, AP Calculus BC, AP Chemistry, AP Computer Science A, AP Computer Science Principles, AP English Language, AP English Literature, AP Environmental Science, AP Music Theory, AP Physics C: Electricity & Magnetism, AP Physics C: Mechanics, AP Physics I, AP Physics II, AP Psychology, AP Statistics, AP Studio Art, AP U.S. Government & Politics, AP U.S. History, ART 122 Electronic Illustration, ART 141 Photography I, ART 145 Digital Photography I, EGL 192 Introduction to Fiction, ENG 101 Standard Freshman Composition, ENG 102 Literature and Composition, PHY 101 College Physics I, PHY 102 College Physics II, PHY 130 Physics C
Average SAT score
Average ACT score
Matriculation DataMatric. Data
Classroom Dress Code
blazer, dress shirt, dress slacks or skirt

Tuition and Acceptance Rate

Admission Deadline
Jan. 31 / Dec. 15 / rolling
Yearly Tuition Cost
Tuition Notes
Day Students $27,000. 5-Day Boarding Students: $50,000. 7-Day Boarding Students: $60,000.
% on Financial Aid
Average Financial Aid Grant
Acceptance Rate
National avg.: 85%
Admissions Director
Cindy Simkus


Total Sports Offered
7 sports


Total ExtracurricularsTotal Extra-curric.
29 extracurriculars
Club or Organization:
Amnesty International, Art Honor Society, Business Club, English Honor Society, Fitness Club, GSA, History Honor Society, Math Honor Society, National Honor Society, Science Honor Society, Science Olympiad, Service Learning, STEM, Strategy Games & E-Sports, Student Council, Student Publications: Roseleaves & Scribblers, The Band Club, Yearbook

Arts and Music Programs:
Choir, Dance, Fall Play, Spring Musical

Recreational Athletic Programs:
Badminton Club, Running, Strength and Conditioning, Ultimate Frisbee, Volleyball Club, Weight training, Yoga and Meditation

School Notes

  • AT KNOX, EVERYONE KNOWS YOUR NAME...As an intentionally small community, there is no student "in the back seat" at Knox.Our administrators and teachers view each student as unique and special and put time and care into knowing every student by name, which allows us to deliver the best educational experience possible.
  • EVERY STUDENT`S POTENTIAL IS UNLOCKED & MAXIMIZED...Knox educators go beyond teaching our students the content of textbooks; we teach them critical thinking, inquiry, collaboration, and research and presentation skills.100% of our seniors graduate, attend their dream universities and earn millions of dollars in scholarships each year.
  • EVERY STUDENT IS INSPIRED TO GO HIGHER...Daily life at Knox allows for a balance of academics, athletics, and the arts, along with extracurricular activities and robust student life programming.Students and staff live the six core values - Respect, Responsibility, Integrity, Courage, Kindness, and Scholarship - as part of their dedication to the continual development of the whole person.
  • BOUNDLESS EXPERIENCES ARE WAITING FOR YOU...Knox is known as the school where students try new things they never thought possible. Students can be athletes and actors, engineers and equestrians, writers and rowers, designers and performers - all in a supportive and nurturing environment.At Knox, opportunities are simply unlimited.
  • Sample of notable school alumni/alumnae:
    • Millie Chan - Product Designer, Business Owner and CEO
    • Dr. Matthew Rosen - Physicist
    • Miles Chamley-Watson - U.S. Olympian in Fencing (2012, 2016); 3-time First Team All-American
    • Dr. Benjamin Cilento - Plastic & Reconstructed Surgeon
    • Michael Schenker - Television Producer
    • Phebe T. Phillips Byrne - Equestrian; winner National Horse of the Year 1990
    • Tim Eriksen - Ethnomusicologist, Singer, Songwriter
    • Lisa Gay Hamilton - Broadway, Film & TV Actor
    • Chris Strompolos - Film Producer
    • Jim Liu - US Junior Golf Champion 2010
Source: Verified school update

Frequently Asked Questions

How much does The Knox School cost?
The Knox School's tuition is approximately $27,000 for private students.
What is the acceptance rate of The Knox School?
The acceptance rate of The Knox School is 75%, which is lower than the national average of 79%.
Who are famous alumni from The Knox School?
The Knox School famous alumni include: Millie Chan, Dr. Matthew Rosen, Miles Chamley-Watson, Dr. Benjamin Cilento, Michael Schenker, Phebe T. Phillips Byrne, Tim Eriksen, Lisa Gay Hamilton, Chris Strompolos and Jim Liu.
What sports does The Knox School offer?
The Knox School offers 7 interscholastic sports: Badminton, Basketball, Crew, Cross Country, Equestrian, Soccer and Volleyball.
What is The Knox School's ranking?
The Knox School ranks among the top 20% of private schools in New York for: Most AP courses offered, Most extracurriculars offered and Oldest founding date.
When is the application deadline for The Knox School?
The application deadline for The Knox School is Jan. 31 / Dec. 15 / rolling (applications are due on Jan. 31 / Dec. 15 but additional applications are reviewed year-round as space permits ).

School Reviews

  5.00 out of 5  (9 reviews)
The Knox School has provided my children with opportunities for leadership, to develop their talents and shine on stage, and to have a voice in the classroom in engaging in discussion with their teachers and peers. This caring community of faculty and administrators offers a student-driven experience with personalized course scheduling, a curriculum for college counseling, and the support and encouragement for students to develop new clubs and student organizations. Teen years are difficult and preparing for college is stressful. My children are not just surviving, they are thriving thanks to the support and opportunities that Knox has provided.
- Posted by
I highly recommend Knox to any parents looking for a school that not only has a stellar academic program but an amazing campus life. Knox really focuses on making your child the best version of themselves. I graduated from Knox in 2003 and my niece and nephew currently attend the school. This place is not just a school, but it is more like a family. I have seen the amazing difference Knox has made for the niece and nephew who are becoming mature, smart, and kind people. The faculty goes above and beyond for each student. Please come to campus and experience what Knox has to offer if you are looking for a private school for your child.
- Posted by
After issues with our district, we needed a place for our daughter and thankfully we found the Knox School. From our first visit, we knew this would be the perfect place. Warm and caring administration, knowledgeable and dedicated teachers combined with a beautiful campus and a nurturing environment make The Knox School a fantastic choice. Our daughter is already a new person after only 2 months - we cant wait to see what the next 2 1/2 years will bring.
- Posted by
The Knox School has been a perfect match for our son. The small size classes and personal attention the students receive from the teachers are exceptional. The coaches do an awesome job encouraging the kids and helping them to become the best athlete that they can be. All the administrators are present and know the kids by name. We can not say enough good things about this school.
- Posted by
We could not be happier with our decision to pursue the Knox School for our son. Academically and the access to talented equestrian staff made Knox the ideal choice for our family. Wonderful school
- Posted by
Knox is an excellent nurturing school that provides a positive and caring environment. There is a great sense of community. The classes are small and every student gets the attention they deserve. Teachers and administrators are very involved and supportive. The equestrian program is excellent and unique. The student body is very diverse with students from many different countries, providing a great experience for all students. This school has been life changing for my daughter!
- Posted by
Knox is an excellent school. Fantastic, caring teachers. Beautiful campus. Small class size. Students are in a healthy learning environment.
- Posted by
The school has established a climate that promotes excellence and leadership among students in a caring and supportive environment. My daughter participated in crew which was a great experience that opened her up to challenges as well as provided unique opportunities.
- Posted by
Knox is an EXCELLENT School providing superior academic preparation for college and beyond. LOVE the International component and the mix of Day and Boarding. I* graduated from here in 1973 as have 3 of my adult children (''97, ''98 and ''00). I currently have a child in 10th grade (''16) here.
- Posted by

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Quick Stats (2024)

  • Top Ranked NY School
  • Grades: 6-12
  • Enrollment: 118 students
  • Yearly Tuition: $27,000
  • Acceptance rate: 75%
  • Average class size: 12 students
  • Application Deadline: Jan. 31 / Dec. 15 / rolling
  • Source: Verified school update

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Did You Know?

The average private school tuition in Suffolk County, NY is $20,791 for elementary schools and $29,814 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Suffolk County, NY is 82% (read more about average acceptance rates across the country).

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