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St. Agnes Cathedral School

70 Clinton Ave Rockville Centre, NY 11570

Quick Facts (2026-27)

  • Top Ranked NY School
  • Grades: Kindergarten-8
  • Enrollment: 699 students
  • Yearly Tuition: $5,995
  • Acceptance rate: 95%
  • Average class size: 20 students
  • Application Deadline: None / Rolling
  • Source: National Center for Education Statistics (NCES)
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Quick Facts (2026-27)

  • Top Ranked NY School
  • Grades: Kindergarten-8
  • Enrollment: 699 students
  • Yearly Tuition: $5,995
  • Acceptance rate: 95%
  • Average class size: 20 students
  • Application Deadline: None / Rolling
  • Source: National Center for Education Statistics (NCES)

School Rankings

St. Agnes Cathedral School ranks among the top 20% of private schools in New York for:

Category
Attribute
Student Body
School History

School Facts

Religious Affiliation
Grades Offered
Grades Kindergarten-8
Students By Grade
Year Founded
1917
School Motto
'Educating God's Greatest Gift'

Student Body

Total Students
699 students
Student Body Type
Co-ed
% Students of Color
14%
State avg.: 39%

Academic Profile

Total Classroom Teachers
43 teachers
Student-Teacher Ratio
16:1
National avg.:
Average Class Size
20 students
School Membership(s)School Assoc.

Tuition & Financial Aid

Admission Deadline
None / Rolling
Yearly Tuition Cost
Acceptance Rate
95%
National avg.: 82%
Application URL

School Notes

  • St. Agnes Cathedral School strives to create and foster an environment in response to the call of the mission of the Church: to proclaim the message of Jesus, to experience worship, to build a faith community, and to respond in service to others.
  • Believing in the uniqueness of each child, St. Agnes Cathedral School incorporates a holistic approach to education: academic achievement, affective and creative development, as well as, the physical, emotional, and spiritual growth of its students.
  • The success of St. Agnes Cathedral School, founded in 1917, is predicated upon the positive response of a vibrant faith community of clergy, administrators, faculty, staff and parents who are committed to Catholic education.
  • Dedicated parents participate in the life of the school through a variety of school organizations: School Board, Mothers and Fathers Clubs and Home School Association.
  • St. Agnes Cathedral School strives to create and foster an environment in response to the call of the mission of the Church: to proclaim the message of Jesus, to experience worship, to build a faith community, and to respond in service to others.
  • Believing in the uniqueness of each child, St. Agnes Cathedral School incorporates a holistic approach to education: academic achievement, affective and creative development, as well as, the physical, emotional, and spiritual growth of its students.
  • The success of St. Agnes Cathedral School, founded in 1917, is predicated upon the positive response of a vibrant faith community of clergy, administrators, faculty, staff and parents who are committed to Catholic education.
  • Dedicated parents participate in the life of the school through a variety of school organizations: School Board, Mothers and Fathers Clubs and Home School Association.
Source: National Center for Education Statistics (NCES)

Frequently Asked Questions

How much does St. Agnes Cathedral School cost?
St. Agnes Cathedral School's tuition is approximately $5,995 for private students.
What is the acceptance rate of St. Agnes Cathedral School?
The acceptance rate of St. Agnes Cathedral School is 95%, which is higher than the national average of 76%.
What is St. Agnes Cathedral School's ranking?
St. Agnes Cathedral School ranks among the top 20% of private schools in New York for: Largest student body and Oldest founding date.
When is the application deadline for St. Agnes Cathedral School?
The application deadline for St. Agnes Cathedral School is rolling (applications are reviewed as they are received year-round).

School Calendar

View the St. Agnes Cathedral School below. Note key dates such as:

Event
Date
Columbus Day - School Closed
October 12, 2026 (Monday)
Veterans' Day - School Closed
November 11, 2026 (Wednesday)
Thanksgiving Day - School Closed
November 26, 2026 (Thursday)
Thanksgiving Recess - School Closed
November 27, 2026 (Friday)
Christmas Recess - School Closed
December 24, 2026 (Thursday)

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Did You Know?

The average private school tuition in Nassau County, NY is $21,802 for elementary schools and $21,748 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Nassau County, NY is 75% (read more about average acceptance rates across the country).

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