Located on a 285 acre woodland campus in Tarrytown, NY, Hackley School is a K-12 coeducational day and five-day boarding school. Visitors are drawn to the beauty of Hackley`s historic Quad, yet the School`s facilities libraries, technology classrooms (including Maker Space) athletics fields, cross-country trails, recently updated Lower School, the 115,000 square foor Johnson Center for Health and Wellness and our newly opened center for Creative Technology and Arts on our gracefully designed campus rival those of nationally known boarding schools. Here, we challenge students to grow in character, scholarship and accomplishment in a community that encourages all to "Enter Here to Be and Find a Friend."
Quick Facts (2025)
- Top Ranked NY School
- Grades: Kindergarten-12
- Enrollment: 840 students
- Average class size: 16 students
- Application Deadline: Dec. 2 / Jan. 9
- Source: Verified school update
Top Rankings
Hackley School ranks among the top 20% of private schools in New York for:
Category
Attribute
Student Body
Sports offered
School History
School Overview
School Membership(s)School Assoc.
Grades Offered
Grades Kindergarten-12
Year Founded
1899
Colors
White, Black, Grey, Yellow
Student Body
Total Students
840 students
Student Body Type
Co-ed
% Students of Color
22%
State avg.: 40%
Students by Grade

Academics and Faculty
Total Classroom Teachers
128 teachers
Student-Teacher Ratio
7:1
National avg.: 13:1
% Faculty w/Advanced Degree
87%
Average Class Size
16 students
Number of AP Courses
14 courses
List of Courses Offered
Advanced Courses
AP BiologyAP Calculus AB
AP Calculus BCAP Chemistry
AP Chinese LanguageAP Computer Science
AP exams (not courses) offered in history and EnglishAP French Language
AP Latin: Vergil and CaesarAP Music Theory
AP Physics CAP Spanish Language
AP Spanish LiteratureAP Statistics
AP Studio Art
Matriculation DataMatric. Data
Classroom Dress Code
Casual
Tuition and Acceptance Rate
Admission Deadline
Dec. 2 / Jan. 9
Tuition Notes
Tuition varies by division
Average Financial Aid Grant
$42,000
Admissions Director
Sheila Hicks-Rotella
Admissions Associate
Ann Moore
Sports
Total Sports Offered
16 sports
Extracurriculars
Total ExtracurricularsTotal Extra-curric.
16 extracurriculars
ExtracurricularsExtra-curric.
Club or Organization:
Arts and Music Programs:
Community ServiceGreen Initiatives Club
Literary MagazineMath Team
Model CongressModel UN
Student Ambassadors/Tour GuidesStudent Government
Student NewspaperUNITY (Student diversity working group)
Yearbook
Arts and Music Programs:
Chamber EnsembleChoir
DramaJazz Band
Orchestra
School Notes
- School Mascot: Hornet
- For 119 years, Hackley has welcomed all with the words carved over the entry: "Enter here to be and find a friend." The warmth of Hackley`s community enables both challenge and nurture, giving students the means to set and attain high personal goals. Supporting student achievement in rigorous academics, arts, athletics, and community service, Hackley honors commitment and strength of character, with a mission statement that underscores the importance of these values: "Hackley challenges students to grow in character, scholarship, and accomplishment, to offer unreserved effort, and to learn from our community`s varying perspectives and backgrounds."By committing energy, time, and imagination to serving the needs of people beyond Hackley, students experience the satisfaction of helping others and gain appreciation for the complexity and concerns of the larger community.
Source: Verified school update
Frequently Asked Questions
What sports does Hackley School offer?
Hackley School offers 16 interscholastic sports: Baseball, Basketball, Cross Country, Fencing, Field Hockey, Football, Golf, Lacrosse, Soccer, Softball, Squash, Swimming, Tennis, Track and Field, Winter Track and Wrestling. Hackley School is ranked as one of the top 20% of private schools in New York for most sports offered.
What is Hackley School's ranking?
Hackley School ranks among the top 20% of private schools in New York for: Largest student body, Most sports offered and Oldest founding date.
When is the application deadline for Hackley School?
The application deadline for Hackley School is Dec. 2 / Jan. 9.
School Calendar
View the Hackley School yearly calendar below. Note key dates such as:
Event
Date
School Closed: Labor Day
September 01, 2025 (Monday)
First Day of School
September 02, 2025 (Tuesday)
School Closed: Rosh Hashanah
September 23, 2025 (Tuesday)
School Closed: Yom Kippur
October 02, 2025 (Thursday)
School Closed: Columbus Day / Indigenous Peoples' Day
October 13, 2025 (Monday)
School Reviews
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