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Best New York Private High Schools Belonging to No Membership Association (2026)

For the 2026 school year, there are 552 private high schools belonging to No Membership Association in New York. You can also find more schools membership associations in New York.
The top-ranked private high schools belonging to No Membership Association in New York include BASIS Independent Brooklyn, Avenues The World School, and Columbia Grammar & Preparatory School.

Top-Ranked Private High Schools Belonging to No Membership Association in New York (2026)

School
Location
Quick Facts
Adelphi Academy of Brooklyn
Adelphi Academy of Brooklyn Photo - Adelphi Academy of Brooklyn's historic Bay Ridge campus is located at 8515 Ridge Boulevard, in the heart of Bay Ridge, Brooklyn. .
(8)
8515 Ridge Boulevard
Brooklyn, NY 11209
(718) 238-3308
Gr: NS-12 | 235 students Avg. class size: 12 students Sports: 15 | Extracurrculars: 20 Tuition & acceptance rate listed
Archbishop Stepinac High School
Archbishop Stepinac High School Photo - Your pathway to excellence!
All-boys (Catholic)
(1)
950 Mamaroneck Ave
White Plains, NY 10605
(914) 946-4800
Gr: 9-12 | 819 students Avg. class size: 18 students Sports: 15 | Extracurrculars: 67 Tuition & acceptance rate listed
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 students Sports: 14 | Extracurrculars: 99 Tuition listed
BASIS Independent Brooklyn
BASIS Independent Brooklyn Photo
556 Columbia Street
Brooklyn, NY 11231
(929) 626-5001
Gr: PK-12 | 676 students Avg. class size: 14 students Sports: 18 | Extracurrculars: 28 Tuition listed
BASIS Independent Manhattan
BASIS Independent Manhattan Photo - Early Learning Program
(1)
795 Columbus Avenue
New York, NY 10025
(347) 305-4960
Gr: PK-12 | 292 students Avg. class size: 15 students Sports: 9 | Extracurrculars: 17 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 students 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 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
Iona Preparatory School
Iona Preparatory School Photo
All-boys (Catholic)
(1)
255 Wilmot Road
New Rochelle, NY 10804
(914) 632-0714
Gr: PK-12 | 958 students Sports: 16 | Extracurrculars: 27 Tuition listed
The Knox School
The Knox School Photo - Founded in 1904, The Knox School is a premier boarding and day school located on 35 acres of waterfront property along the North Shore of Long Island.
(10)
541 Long Beach Road
Saint James, NY 11780
(631) 686-1600
Gr: 6-12 | 132 students Avg. class size: 12 students Sports: 9 | Extracurrculars: 39 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 students Avg. class size: 18 students Sports: 9 | Extracurrculars: 33 Tuition listed
Manlius Pebble Hill School
Manlius Pebble Hill School Photo - The opening day Handshake Ceremony is a tradition that dates back generations, with the entire student body along with faculty and staff to welcome each other into a new academic year. Handshakes, hugs, high fives, fist bumps, waves, and rock-paper-scissors are all forms of greetings.
(1)
5300 Jamesville Rd
Syracuse, NY 13214
(315) 446-2452
Gr: PK-12 | 332 students Avg. class size: 13 students Sports: 9 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
Saint Therese Classical Academy and Chesterton Academy
Saint Therese Classical Academy and Chesterton Academy Photo - Practicing for our winter Gala! Saint Therese and Sister Pierre
Special Program Emphasis (Catholic)
(5)
3348 State Route 208 Building 2
Campbell Hall, NY 10916
(845) 610-5288
Gr: K-12 | 79 students Avg. class size: 14 students Sports: 3 | Extracurrculars: 12 Tuition & acceptance rate listed
The School For Young Performers
The School For Young Performers Photo - SYP: Creating bespoke one on one educational experiences globally for over 30 years!
(1)
400 Columbus Avenue
Valhalla, NY 10595
(888) 797-1985
Gr: K-12 | 14 students Avg. class size: 1 student Sports: 6 | Extracurrculars: 7 Tuition & acceptance rate listed
Smithtown Christian School
Smithtown Christian School Photo
(Christian)
(8)
1 Higbie Dr
Smithtown, NY 11787
(631) 265-3334
Gr: PK-12 | 353 students Avg. class size: 18 students Sports: 6 | Extracurrculars: 16 Tuition & acceptance rate listed
THINK Global School
THINK Global School Photo - THINK Global School is comprised of 41 high school students who hail from all over the world. It's an opportunity to live next to and learn from a truly global student body.
960 Madison Avenue Fifth Floor
New York, NY 10021
(646) 808-0675
Gr: 11-12 | 36 students Avg. class size: 10 students 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 | 127 students Avg. class size: 12 students Sports: 9 | Extracurrculars: 11 Tuition & acceptance rate listed
Vincent Smith School
Vincent Smith School Photo - Learning never stops, even between class periods
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
Windsor School
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: 4 | Extracurrculars: 8 Tuition & acceptance rate listed
Winston Preparatory School NY
Winston Preparatory School NY Photo - Students attend classes that are geared to improve their essential skills in reading and writing, math, science and history. A variety of clubs and our competitive sports program meet after school.
Special Education School
(5)
126 West 17th Street
New York, NY 10011
(212) 496-8400
Gr: 4-12 | 234 students Avg. class size: 10 students Sports: 7 | Extracurrculars: 28 Acceptance rate listed
ACADEMICS WEST
ACADEMICS WEST Photo
Special Education School
(13)
37 west 65th street, Floor 5
New York, NY 10023
(212) 580-0080
Gr: K-12 | 80 students Avg. class size: 5 students Sports: 2 | Extracurrculars: 7 Tuition & acceptance rate 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
Fusion Academy Brooklyn
Fusion Academy Brooklyn Photo - Each Fusion campus has a state-of-the-art music studio with professional-grade tools. Students can explore instruments, vocals, songwriting, DJ performing arts, and more.
Alternative School
(1)
1 Metrotech Center North, Suite 1004
Brooklyn, NY 11201
(877) 673-8893
Gr: 6-12 | 57 students Avg. class size: 1 student Tuition listed
Fusion Academy Long Island
Fusion Academy Long Island Photo - Each Fusion campus has a state-of-the-art music studio with professional-grade tools. Students can explore instruments, vocals, songwriting, DJ performing arts, and more.
260 Crossways Park Drive, Suite A
Woodbury, NY 11797
(877) 673-8893
Gr: 6-12 | 34 students Avg. class size: 1 student Tuition listed
Fusion Academy Upper West Side
Fusion Academy Upper West Side Photo - Students get to be up close to everything in our science lab. In the one-to-one classroom students are always involved in experiments and have a hands-on approach to learning. We have college-level tools available and the world can be their classroom if they choose to venture out of the science lab.
Alternative School
157 Columbus Avenue, 3rd Floor
New York, NY 10023
(877) 673-8893
Gr: 6-12 | 59 students Tuition listed
Fusion Academy Westchester
Fusion Academy Westchester Photo - Each Fusion campus has a state-of-the-art music studio with professional-grade tools. Students can explore instruments, vocals, songwriting, DJ performing arts, and more.
Special Education School
1 North Broadway, Suite 120
White Plains, NY 10601
(877) 673-8893
Gr: 6-12 Avg. class size: 1 student 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 | 281 students Avg. class size: 20 students Sports: 10 | Extracurrculars: 10 Tuition & acceptance rate listed
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