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Oldest ²ÝÁñÉçÇø High Schools in New York

The average private high school in New York was founded around 1948 (2026-27).
The oldest private high school in New York is Harrow International School New York, founded in 1572.

Quick Facts (2026-27)

  • # NY Schools Ranked: 436
  • Top 20 Range (Year Founded): 1572–1850
  • NY School Avg.: 1948
  • National School Avg.: 1967

Quick Facts (2026-27)

  • # NY Schools Ranked: 436
  • Top 20 Range (Year Founded): 1572–1850
  • NY School Avg.: 1948
  • National School Avg.: 1967
Show school map — New York (year founded range: 1572–1850, avg 1948)
Year Founded Range: 1572 1863 Avg. Year Founded: 1822

Oldest ²ÝÁñÉçÇø High Schools in New York (2026-27)

Showing 436 schools
Harrow International School New York Photo
#1Harrow International School New York
Gr: 6-12
Avg. class size: 8 students
Sports: 11
500 Montauk Highway
East Islip, NY 11769
(631) 869-1572
1572year founded
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Map of Collegiate School
#2Collegiate School
Gr: K-12 | 649 students
All-boys
301 Freedom Place South
New York, NY 10069
(212) 812-8552
1628year founded
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Map of Trinity School
#3Trinity School
Gr: NS-12 | 997 students
Episcopal
139 W 91st St
New York, NY 10024
(212) 932-6856
1709year founded
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Columbia Grammar & Preparatory School Photo
#4Columbia Grammar & Preparatory School
Gr: PK-12 | 1,167 students
Avg. class size: 14 students
Sports: 14 | Extracurriculars: 74
5 W 93rd St
New York, NY 10025
(212) 749-6200
(3)
1764year founded
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Map of Friends Seminary
#5Friends Seminary
Gr: K-12 | 769 students
Friends
222 E 16th St
New York, NY 10003
(212) 979-5030
1786year founded
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Oakwood Friends School Photo
#6Oakwood Friends School
Gr: 6-12 | 177 students
Avg. class size: 12 students
Sports: 10 | Extracurriculars: 34
Friends
22 Spackenkill Road
Poughkeepsie, NY 12603
(845) 462-4200
1796year founded
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Map of Albany Academies
#7Albany Academies
Gr: PK-12 | 680 students
Avg. class size: 16 students
Sports: 18
135-140 Academy Road
Albany, NY 12208
(518) 429-2300
1813year founded
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Emma Willard School Photo
#8Emma Willard School
Gr: 9-12 | 354 students
Avg. class size: 12 students
Sports: 17 | Extracurriculars: 36
All-girls
285 Pawling Avenue
Troy, NY 12180
(518) 833-1301
1814year founded
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Map of New York School For The Deaf
#9New York School For The Deaf
Gr: PK-12 | 128 students
Special Education School
555 Knollwood Rd
White Plains, NY 10603
(914) 949-7310
1817year founded
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Map of Cincinnatus Christian Academy
#10Cincinnatus Christian Academy
Gr: K-9 | 29 students
Baptist
2809 Cincinnatus Road
Cincinnatus, NY 13040
(607) 863-3200
1823year founded
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Map of Neil Hellman School/Parsons Child & Family Center
#11(°Õ11–T12)Neil Hellman School/Parsons Child & Family Center
Gr: 1-12 | 108 students
Special Education School
60 Academy Rd
Albany, NY 12208
(518) 426-2600
1829year founded
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Map of Northeast Parent & Child Society
#11(°Õ11–T12)Northeast Parent & Child Society
Gr: 6-12 | 154 students
Special Education School
1821 Hamburg St
Schenectady, NY 12304
(518) 346-1273
(1)
1829year founded
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Map of New York Institute For Special Education
#13New York Institute For Special Education
Gr: K-12 | 90 students
Avg. class size: 6 students
Sports: 6
Special Education School
999 Pelham Pkwy N
Bronx, NY 10469
(718) 519-7000
1831year founded
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Map of Hillside Children's Center -andrews Trahey Campus
#14(°Õ14–T15)Hillside Children's Center -andrews Trahey Campus
Gr: 5-12 | 65 students
Special Education School
1183 Monroe Ave
Rochester, NY 14620
(585) 256-7628
1837year founded
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Map of Hillside Childrens Center - Finger Lakes Campus
#14(°Õ14–T15)Hillside Childrens Center - Finger Lakes Campus
Gr: 4-12 | 38 students
Alternative School
7432 County House Rd
Auburn, NY 13021
(315) 258-2150
1837year founded
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Fordham Preparatory School Photo
#16Fordham Preparatory School
Gr: 9-12 | 946 students
Avg. class size: 21 students
Sports: 20 | Extracurriculars: 47
All-boys (Catholic)
441 E. Fordham Road
Bronx, NY 10458
(718) 367-7500
(1)
1841year founded
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Map of Packer Collegiate Institute
#17Packer Collegiate Institute
Gr: PK-12 | 1,023 students
170 Joralemon St
Brooklyn, NY 11201
(718) 250-0221
1845year founded
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Xavier High School Photo
#18Xavier High School
Gr: 9-12 | 1,031 students
Sports: 20 | Extracurriculars: 66
All-boys (Catholic)
30 West 16th Street
New York, NY 10011
(212) 924-7900
(1)
1847year founded
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La Salle Academy Photo
#19 La Salle Academy
Gr: 9-12 | 211 students
Avg. class size: 20 students
Sports: 8 | Extracurriculars: 20
All-boys (Catholic)
44 East 2nd Street
New York, NY 10003
(212) 475-8940
1848year founded
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Map of Baker Hall School
#20(°Õ20–T21)Baker Hall School
Gr: 6-12 | 110 students
Special Education School
777 Ridge Rd
Buffalo, NY 14218
(716) 828-9737
1850year founded
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Map of La Salle Institute
#20(°Õ20–T21)La Salle Institute
Gr: 6-12 | 445 students
Sports: 19
Catholic
174 Williams Rd
Troy, NY 12180
(518) 283-2500
(2)
1850year founded
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Map of Bishop Loughlin Memorial High School
#22(°Õ22–T23)Bishop Loughlin Memorial High School
Gr: 9-12 | 621 students
Catholic
357 Clermont Ave
Brooklyn, NY 11238
(718) 857-2700
(1)
1851year founded
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Buffalo Seminary Photo
#22(°Õ22–T23)Buffalo Seminary
Gr: 9-12 | 160 students
Avg. class size: 10 students
Sports: 16 | Extracurriculars: 34
All-girls
205 Bidwell Parkway
Buffalo, NY 14222
(716) 885-6780
(12)
1851year founded
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Doane Stuart School Photo
#24Doane Stuart School
Gr: NS-12 | 174 students
Avg. class size: 13 students
Sports: 11 | Extracurriculars: 19
Specialized Curriculum
199 Washington Avenue
Rensselaer, NY 12144
(518) 465-5222
(5)
1852year founded
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Map of La Salle School
#25(°Õ25–T27)La Salle School
Gr: 6-12 | 57 students
All-boys | Alternative School (Catholic)
391 Western Ave
Albany, NY 12203
(518) 242-4731
1854year founded
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Map of Lasalle School
#25(°Õ25–T27)Lasalle School
Gr: 6-12 | 68 students
All-boys (Catholic)
391 Western Ave
Albany, NY 12203
(518) 242-4731
1854year founded
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Poly Prep Country Day School Photo
#25(°Õ25–T27)Poly Prep Country Day School
Gr: PK-12 | 1,171 students
Avg. class size: 16 students
Sports: 17 | Extracurriculars: 20
9216 Seventh Ave
Brooklyn, NY 11228
(917) 693-5569
1854year founded
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Map of Academy Of Mount St. Ursula
#28Academy Of Mount St. Ursula
Gr: 9-12 | 289 students
Sports: 5 | Extracurriculars: 24
All-girls (Catholic)
330 Bedford Park Blvd
Bronx, NY 10458
(718) 364-5353
(1)
1855year founded
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Map of Nardin Academy
#29Nardin Academy
Gr: 9-12 | 492 students
All-girls (Catholic)
135 Cleveland Ave
Buffalo, NY 14222
(716) 881-6262
1857year founded
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St. Francis Prep Photo
#30St. Francis Prep
Gr: 9-12 | 2,420 students
Avg. class size: 31 students
Sports: 22 | Extracurriculars: 79
Catholic
6100 Francis Lewis Blvd
Fresh Meadows, NY 11365
(718) 423-8810
(1)
1858year founded
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Map of Christian Brothers Academy
#31Christian Brothers Academy
Gr: 5-12 | 506 students
All-boys (Catholic)
12 Airline Dr
Albany, NY 12205
(518) 452-9809
(1)
1859year founded
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Map of St. Joseph's Collegiate Institute
#32St. Joseph's Collegiate Institute
Gr: 9-12 | 630 students
Sports: 19 | Extracurriculars: 40
All-boys (Catholic)
845 Kenmore Ave
Buffalo, NY 14223
(716) 874-4024
(2)
1861year founded
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Saratoga Central Catholic High School Photo
#33Saratoga Central Catholic High School
Gr: 6-12 | 198 students
Sports: 10
Catholic
247 Broadway
Saratoga Springs, NY 12866
(518) 587-7070
(2)
1862year founded
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Adelphi Academy of Brooklyn Photo
#34(°Õ34–T35)Adelphi Academy of Brooklyn
Gr: NS-12 | 235 students
Avg. class size: 12 students
Sports: 15 | Extracurriculars: 20
8515 Ridge Boulevard
Brooklyn, NY 11209
(718) 238-3308
(8)
1863year founded
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Map of Ives School
#34(°Õ34–T35)Ives School
Gr: 8-12 | 99 students
All-boys
Route 202
Lincolndale, NY 10540
(914) 248-7474
1863year founded
View Profile
Show 100 more private schools in New York (out of 436 total schools)
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Frequently Asked Questions

What is the New York average private high schools founding year?
The New York average private high schools founding year is 1948 for 2026-27.
What are the private high schools with oldest founding year in New York?
The top ranked private high schools in New York include Harrow International School New York, Collegiate School and Trinity School.

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