Private School Review - Established 2003
Brooklyn Friends School Photo
Brooklyn Friends School

Best New York Private High Schools Belonging to New York State Association of Independent Schools (NYSAIS) (2025-26)

For the 2025-26 school year, there are 91 private high schools belonging to New York State Association of Independent Schools (NYSAIS) serving 38,930 students in New York. You can also find more schools membership associations in New York.
The top ranked private high schools belonging to New York State Association of Independent Schools (NYSAIS) in New York include Friends Academy, Emma Willard School, and The Browning School.
The average tuition cost is $45,421, which is higher than the New York private high school average tuition cost of $26,922.
26% of private high schools belonging to New York State Association of Independent Schools (NYSAIS) in New York are religiously affiliated (most commonly Catholic and Christian).

Top Ranked Private High Schools Belonging to New York State Association of Independent Schools (NYSAIS) in New York (2025-26)

School
Location
Quick Facts
Avenues The World School
Avenues The World School Photo - Avenues Early Learning Center Classroom
(4)
259 10th Avenue
New York, NY 10001
(646) 664-0800
Gr: NS-12 | 1,900 student Sports: 14 | Extracurrculars: 99 Tuition listed
Bay Ridge Preparatory School
Bay Ridge Preparatory School Photo - With a fresh approach to education, Bay Ridge Prep gives students an enriching experience that lasts a lifetime. Curiosity is stimulated, confidence is built, character is strengthened and socially-responsible citizens are graduated and prepared to be leaders of a global society.
(5)
8101 Ridge Boulevard
Brooklyn, NY 11209
(718) 833-9090
Gr: K-12 | 367 students Avg. class size: 15 students Sports: 12 | Extracurrculars: 28 Tuition listed
Birch Wathen Lenox School
Birch Wathen Lenox School Photo
(10)
210 E 77th Street
New York, NY 10075
(212) 861-0404
Gr: K-12 Avg. class size: 15 students Sports: 11 | Extracurrculars: 16 Tuition listed
Buffalo Seminary
Buffalo Seminary Photo - Founded in 1851, and in this building since 1909, Buffalo Seminary is on the National Register of Historic Places. Our campus includes 5 faculty and student residences in adjacent restored historic homes, and Larkin Field, a 5-minute walk away on a leafy parkway.
All-girls
(12)
205 Bidwell Parkway
Buffalo, NY 14222
(716) 885-6780
Gr: 9-12 | 160 students Avg. class size: 10 students Sports: 16 | Extracurrculars: 34 Tuition & acceptance rate listed
Columbia Grammar & Preparatory School
Columbia Grammar & Preparatory School Photo
(3)
5 W 93rd St
New York, NY 10025
(212) 749-6200
Gr: PK-12 | 1,163 student Avg. class size: 14 students Sports: 14 | Extracurrculars: 74 Tuition listed
Friends Academy
Friends Academy Photo - Middle School Science
(Friends)
(11)
270 Duck Pond Road
Locust Valley, NY 11560
(516) 676-0393
Gr: NS-12 | 769 students Avg. class size: 12 students Sports: 18 | Extracurrculars: 46 Tuition & acceptance rate listed
Grace Church School
Grace Church School Photo
(Episcopal)
(5)
86 4th Ave
New York, NY 10003
(212) 475-5609
Gr: PK-12 | 850 students Avg. class size: 18 students Sports: 14 Tuition listed
The Knox School
The Knox School Photo - 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.
(9)
541 Long Beach Road
Saint James, NY 11780
(631) 686-1600
Gr: 6-12 | 132 students Avg. class size: 12 students Sports: 9 | Extracurrculars: 31 Tuition & acceptance rate listed
Loyola School
Loyola School Photo
(Catholic)
980 Park Avenue
New York, NY 10028
(212) 288-3522
Gr: 9-12 | 204 students Avg. class size: 13 students Sports: 9 | Extracurrculars: 31 Tuition listed
Lycee Francais de New York
Lycee Francais de New York Photo
(1)
505 East 75th Street
New York, NY 10021
(212) 369-1400
Gr: NS-12 | 1,233 student Avg. class size: 18 students Sports: 9 | Extracurrculars: 33 Tuition listed
Professional Children's School
Professional Children's School Photo - Students collaborating in the PCS library.
(4)
132 W 60th St
New York, NY 10023
(212) 582-3116
Gr: 4-12 | 137 students Avg. class size: 12 students Extracurrculars: 19 Tuition & acceptance rate listed
Tuxedo Park School
Tuxedo Park School Photo - At Tuxedo Park School, every teacher knows every child. Our small size allows us to administer differentiated instruction at all levels and to challenge the most advanced students while supporting those who need additional or varied instruction.
(9)
Mountain Farm Rd
Tuxedo Park, NY 10987
(845) 351-4737
Gr: NS-9 | 225 students Avg. class size: 12 students Sports: 9 | Extracurrculars: 11 Tuition & acceptance rate listed
Vincent Smith School
Vincent Smith School Photo - Upper School entrance
Special Education School
(3)
322 Port Washington Blvd
Port Washington, NY 11050
(516) 365-4900
Gr: 1-12 | 54 students Avg. class size: 6 students Extracurrculars: 10 Tuition & acceptance rate listed
The Waldorf School Of Garden City
The Waldorf School Of Garden City Photo - Welcome to the Waldorf School of Garden City!
Special Program Emphasis
(9)
225 Cambridge Avenue
Garden City, NY 11530
(516) 742-3434
Gr: NS-12 | 300 students Avg. class size: 18 students Sports: 11 | Extracurrculars: 13 Tuition listed
The Windsor School
The Windsor School Photo - Each year, our graduation ceremony takes places at Queens Botanical Garden. We are proud of our 100% graduation rate each year dating back to 1969, our first graduating class. Our graduates gain acceptance to top colleges and universities with substantial scholarship offers.
(10)
37-02 Main Street
Flushing, NY 11354
(718) 359-8300
Gr: 7-12 | 125 students Avg. class size: 15 students Sports: 6 | Extracurrculars: 8 Tuition & acceptance rate listed
British International School Of Ny
British International School Of Ny Photo - Water views and fresh air keep the students energized and ready to learn. Who says you need to be in a classroom to learn new skills and make new friends!
(1)
20 Waterside Plaza
New York, NY 10010
(212) 481-2700
Gr: NS-12 | 308 students Avg. class size: 17 students Sports: 16 | Extracurrculars: 23 Tuition listed
EF Academy New York
EF Academy New York Photo - Our campus is located an hour outside of New York City in the peaceful suburban community of Thornwood, New York.
(9)
582 Columbus Avenue
Thornwood, NY 10594
(914) 495-6028
Gr: 9-12 | 290 students Avg. class size: 15 students Sports: 6 | Extracurrculars: 35 Tuition listed
Garden School
Garden School Photo - Our goal from the earliest grades through high school is to develop lifelong learners who excel in academics and individuals who enhance Garden School and the college they later attend. All students have their own strengths, weaknesses, talents, and dreams. The college search seeks to find the best match for our graduates, places where they can thrive and learn.
(40)
3316 79th St
Jackson Heights, NY 11372
(718) 335-6363
Gr: NS-12 | 259 students Avg. class size: 15 students Sports: 8 | Extracurrculars: 25 Tuition listed
Green Meadow Waldorf School
Green Meadow Waldorf School Photo - Green Meadow`s middle school academic curriculum engages the budding capacities and immense curiosity of the young teenager. Through practical interdisciplinary experiences, age appropriate challenges, and meaningful social interactions, students thrive academically and emotionally. Every day, students take part in immersive, explorative inquiry, broadening and deepening their understanding of the world.
(14)
307 Hungry Hollow Road
Spring Valley, NY 10977
(845) 356-2514
Gr: NS-12 | 272 students Avg. class size: 20 students Sports: 10 | Extracurrculars: 10 Tuition & acceptance rate listed
Harmony Christian School
Harmony Christian School Photo - Getting our gym ready for the 2018-2019 school year
(Christian)
(4)
1790 Route 211 E
Middletown, NY 10941
(845) 692-5353
Gr: PK-12 | 198 students Avg. class size: 19 students Sports: 5 | Extracurrculars: 4 Tuition & acceptance rate listed
The IDEAL School of Manhattan
The IDEAL School of Manhattan Photo - Students show the kindness snowflakes that they made.
Special Program Emphasis
(5)
5 Hanover Square
New York, NY 10004
(212) 769-1699
Gr: K-12 | 172 students Avg. class size: 14 students Sports: 5 | Extracurrculars: 10 Tuition & acceptance rate listed
The Kew-Forest School
The Kew-Forest School Photo - At The Kew-Forest School, you will find a community that nurtures lifelong learners, educators who inspire young people, and students who support each other. Established in 1918, Kew-Forest is the oldest independent co-ed, college preparatory school in Queens for students in Preschool through Grade 12. For more info, visit kewforest.org.
119-17 Union Tpke
Forest Hills, NY 11375
(718) 268-4667
Gr: NS-12 | 207 students Avg. class size: 12 students Sports: 12 | Extracurrculars: 23 Tuition listed
Allendale Columbia School
Allendale Columbia School Photo - Allendale Columbia School has been a leading independent school in Rochester since 1890.
(6)
519 Allens Creek Road
Rochester, NY 14618
(585) 381-4560
Gr: NS-12 | 356 students Avg. class size: 8 students Sports: 11 | Extracurrculars: 25 Tuition & acceptance rate listed
Berkeley Carroll School
Berkeley Carroll School Photo - Berkeley Carroll is one of NYC's top independent schools.
(4)
181 Lincoln Place
Brooklyn, NY 11217
(718) 534-6060
Gr: PK-12 | 992 students Avg. class size: 16 students Sports: 13 | Extracurrculars: 35 Tuition listed
Brooklyn Friends School
Brooklyn Friends School Photo
(Friends)
(1)
375 Pearl St
Brooklyn, NY 11201
(718) 852-1029
Gr: PK-12 | 687 students Avg. class size: 18 students Sports: 9 Tuition listed
Brown School
Brown School Photo - Welcome to Brown School, a co-ed, Independent school for grades N-8th. Founded in 1893, Brown's 200+ Students receive a strong and diverse education in mathematics, sciences, languages, literature, history, foreign language, liberal arts, fine arts, music, social-emotional learning, and more in a small class setting.
(22)
150 Corlaer Avenue
Schenectady, NY 12304
(518) 370-0366
Gr: PK-12 | 148 students Avg. class size: 12 students Sports: 7 | Extracurrculars: 20 Tuition & acceptance rate listed
The Browning School
The Browning School Photo
All-boys
(12)
52 E 62nd St
New York, NY 10065
(212) 838-6280
Gr: K-12 | 472 students Avg. class size: 15 students Sports: 10 | Extracurrculars: 21 Tuition & acceptance rate listed
The Churchill School & Center
The Churchill School & Center Photo
Special Education School
301 E 29th St
New York, NY 10016
(212) 722-0610
Gr: K-12 | 441 students Avg. class size: 12 students Sports: 9 | Extracurrculars: 8 Tuition & acceptance rate listed
The Cooke School & Institute
The Cooke School & Institute Photo
Special Education School
1713 Madison Avenue
New York, NY 10029
(646) 273-5555
Gr: K-12 | 333 students Avg. class size: 12 students Sports: 2 | Extracurrculars: 8 Tuition & acceptance rate listed
Doane Stuart School
Doane Stuart School Photo
Special Program Emphasis
(5)
199 Washington Avenue
Rensselaer, NY 12144
(518) 465-5222
Gr: NS-12 | 174 students Avg. class size: 13 students Sports: 11 | Extracurrculars: 19 Tuition listed
Dwight School
Dwight School Photo - Located steps away from Central Park on Manhattan's Upper West Side, Dwight has been igniting the spark of genius in every child since 1872.
Alternative School
291 Central Park West
New York, NY 10024
(212) 724-6360
Gr: PK-12 | 955 students Avg. class size: 15 students Sports: 15 | Extracurrculars: 30 Tuition listed
Elisabeth Irwin High School
Elisabeth Irwin High School Photo - Experiencing Chinatown
Montessori School
(5)
272 Sixth Avenue
New York, NY 10014
(212) 477-5316
Gr: 9-12 | 345 students Avg. class size: 20 students Sports: 13 | Extracurrculars: 25 Tuition listed
Emma Willard School
Emma Willard School Photo
All-girls
285 Pawling Avenue
Troy, NY 12180
(518) 833-1301
Gr: 9-12 | 355 students Avg. class size: 12 students Sports: 17 | Extracurrculars: 17 Tuition & acceptance rate listed
Ethical Culture Fieldston School (ECFS)
Ethical Culture Fieldston School (ECFS) Photo - The Ethical Culture Fieldston School offers a world-class progressive education in Pre-K12th Grade at two historic campuses in Manhattan and the Bronx. The core of our educational program is the study and practice of ethics, which prepares and compels us to take care of our world, ourselves, and each other.
(3)
3901 Fieldston Road
Bronx, NY 10471
(718) 329-7300
Gr: PK-12 | 1,705 student Avg. class size: 15 students Sports: 20 | Extracurrculars: 104 Tuition listed
Fordham Preparatory School
Fordham Preparatory School Photo - Fordham Prep's mission is to form leaders in Faith, Scholarship, and Service through a college preparatory education in the Catholic Jesuit tradition.
All-boys (Catholic)
(1)
441 E. Fordham Road
Bronx, NY 10458
(718) 367-7500
Gr: 9-12 | 946 students Avg. class size: 21 students Sports: 20 | Extracurrculars: 47 Tuition & acceptance rate listed
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