Private School Review - Established 2003
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.
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Best New York Nonsectarian Private High Schools (2025-26)

For the 2025-26 school year, there are 193 nonsectarian private high schools in New York. You can also find more religiously affiliated schools in New York.
The top ranked nonsectarian private high schools in New York include BASIS Independent Brooklyn, The Brearley School, and Avenues The World School.

Top Ranked Nonsectarian Private High Schools in New York (2025-26)

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
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
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
795 Columbus Avenue
New York, NY 10025
(929) 930-4798
Gr: PK-12 | 285 students Avg. class size: 15 students Sports: 10 | 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 student Avg. class size: 14 students Sports: 14 | Extracurrculars: 74 Tuition listed
Harrow International School New York
Harrow International School New York Photo - Combining 450 years of outstanding pedagogy at Harrow School, one of the UK's most prestigious independent schools, with the vibrancy of New York and a stunning waterfront campus spread over more than 170 acres, Harrow New York offers a premium day and boarding school education for girls and boys in Grades 6-12.
500 Montauk Highway
East Islip, NY 11769
(631) 869-1572
Gr: 6-12 Avg. class size: 8 students Sports: 11 Tuition & acceptance rate 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
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
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
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 | 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
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 | 272 students Avg. class size: 20 students Sports: 10 | Extracurrculars: 10 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
82nd Street Academics
82nd Street Academics Photo - 82nd Street Academics Full Day Preschool
Alternative School
81-10 35th Avenue
Jackson Heights, NY 11372
(718) 457-0429
Gr: PK-10 | 575 students Avg. class size: 20 students Tuition & acceptance rate listed
Albany Academies
135-140 Academy Road
Albany, NY 12208
(518) 429-2300
Gr: PK-12 | 680 students Avg. class size: 16 students Sports: 18 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
Baker Hall School
Special Education School
777 Ridge Rd
Buffalo, NY 14218
(716) 828-9737
Gr: 6-12 | 110 students
Berkeley Carroll Elementary School
701 Carroll St
Brooklyn, NY 11215
(718) 534-6601
Gr: PK-12 | 803 students Tuition 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
The Brearley School
All-girls
610 East 83rd Street
New York, NY 10028
(212) 570-8514
Gr: K-12 | 762 students Avg. class size: 15 students Sports: 13 Tuition & acceptance rate listed
Brooklyn Amity School
Brooklyn Amity School Photo - Our wonderful facility.
(7)
3867 Shore Pkwy
Brooklyn, NY 11235
(718) 891-6100
Gr: 1-12 | 141 students Avg. class size: 10 students Sports: 9 | Extracurrculars: 4 Tuition & acceptance rate listed
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