St. Cassian School is a National Blue Ribbon Exemplary High Performing School. The school is focused on maximizing each student`s potential through a challenging academic curriculum in an environment that is focused on Catholic-Christian values. The school is committed to academic excellence emphasizing a technology and arts-infused curriculum that develops each child intellectually, spiritually, socially, and physically. St. Cassian School mentors the uniqueness of each child by addressing his or her multiple intelligences. The greatest testimonial to the excellence of a St. Cassian education is the continuing success of our students and graduates. We are extremely proud of the results:St. Cassian School students score in the top 15% of students nation-wide on standardized tests
40% of students score above the 95th percentile on one or more subtests of the Terra Nova exam
Each year, several of our students get inducted into the National Junior Honor Society
100% of our graduates are admitted to the area`s most prestigious secondary schools
60% of our graduating students receive scholarships to high school85% of our graduates are placed in Honors or Advanced Placement courses in high school
Quick Stats (2025)
- Top Ranked NJ School
- Grades: Prekindergarten-8
- Enrollment: 266 students
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
St. Cassian Elementary School ranks among the top 20% of private schools in New Jersey for:
Category
Attribute
Student Body
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Prekindergarten-8
School Calendar
Awards
Blue Ribbon School - Selected in 2016
Student Body
Total Students
266 students
Student Body Type
Co-ed
% Students of Color
45%
State avg.: 39%
Students by Grade

Academics and Faculty
Total Classroom Teachers
23 teachers
Student : Teacher Ratio
12:1
National avg.: 13:1
Matriculation DataMatric. Data
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
School Notes
The greatest testimonial to the excellence of a St. Cassian
education is the continuing success of our students and graduates.
We are extremely proud of the results:
The St. Cassian experience integrates the use of technology across the curriculum, especially within theSTEM/STEAM(Science, Technology, Engineering, Arts, Mathematics) learning activities. The school has a state-of-the-art technology lab and a mobile technology lab with thirty laptops used within the classroom and connected by school-wide WiFi. In addition, each classroom has a Smart board or Smart table. One to One deployment of Chromebooks in the middle school and iPads in the elementary grades, along with Spheros technology for science and math, make learning engaging and fun for 21st century learner. The advanced technology also allows the school to be the area`s sole user of the "flipped classroom" approach, providing distance learning on snow days and other emergency closingsSt. Cassian School`s devoted and talented faculty creates an inspiring culture of learning. For instance, teachers routinely offer after-school academic mentoring or provide opportunities to enhance students` development. From running a school newspaper, a Young Engineers Club, the Forensics (public speaking) team, moderating the Mini Model Congress to coaching one of the numerous sports programs, the teachers dedicate themselves to enriching students` lives.
St. Cassian School is fully accredited by the Middle States Association of Colleges and Schools,is a member in good standing of the National Catholic Educational Association, meets all state regulations and guidelines, and adheres to the Diocesan guidelines for its religious education curriculum.
In summary, the St. Cassian School experience provides an education that mentors the uniqueness of each child by addressing their talents and multiple intelligences, and by encouraging each to assume leadership through a foundation in the Catholic faith.
- St. Cassian School students score in the top 15% of students nation-wide on standardized tests
- 40% of students score above the 95th percentile on one or more subtests of the Terra Nova exam
- Each year, several of our students get inducted into the National Junior Honor Society
- 100% of our graduates are admitted to the area`s most prestigious secondary schools
- 60% of our graduating students receive scholarships to high school
- 85% of our graduates are placed in Honors or Advanced Placement courses in high school
The St. Cassian experience integrates the use of technology across the curriculum, especially within theSTEM/STEAM(Science, Technology, Engineering, Arts, Mathematics) learning activities. The school has a state-of-the-art technology lab and a mobile technology lab with thirty laptops used within the classroom and connected by school-wide WiFi. In addition, each classroom has a Smart board or Smart table. One to One deployment of Chromebooks in the middle school and iPads in the elementary grades, along with Spheros technology for science and math, make learning engaging and fun for 21st century learner. The advanced technology also allows the school to be the area`s sole user of the "flipped classroom" approach, providing distance learning on snow days and other emergency closingsSt. Cassian School`s devoted and talented faculty creates an inspiring culture of learning. For instance, teachers routinely offer after-school academic mentoring or provide opportunities to enhance students` development. From running a school newspaper, a Young Engineers Club, the Forensics (public speaking) team, moderating the Mini Model Congress to coaching one of the numerous sports programs, the teachers dedicate themselves to enriching students` lives.
St. Cassian School is fully accredited by the Middle States Association of Colleges and Schools,is a member in good standing of the National Catholic Educational Association, meets all state regulations and guidelines, and adheres to the Diocesan guidelines for its religious education curriculum.
In summary, the St. Cassian School experience provides an education that mentors the uniqueness of each child by addressing their talents and multiple intelligences, and by encouraging each to assume leadership through a foundation in the Catholic faith.
Source: Verified school update
Frequently Asked Questions
What is St. Cassian Elementary School's ranking?
St. Cassian Elementary School ranks among the top 20% of private schools in New Jersey for: Largest student body.
When is the application deadline for St. Cassian Elementary School?
The application deadline for St. Cassian Elementary School is rolling (applications are reviewed as they are received year-round).
In what neighborhood is St. Cassian Elementary School located?
St. Cassian Elementary School is located in the Upper Montclair neighborhood of Montclair, NJ. There are 1 other private schools located in Upper Montclair.
School Reviews
5 12/7/2016
St. Cassian School is a great Catholic school that just won the National Blue Ribbon Award for academic excellence from the U.S. Department of Education. It's cutting edge in incorporating technology and the arts into the curriculum to make learning more fun and interesting for 21st century students. It offers lots of sports programs for being a small school. Its faculty is amazing and motivated to make learning really engaging. My 7 year old daughter LOVES this school. I love it too, the families are super and devoted to the school's success.
5 6/24/2014
Our child is entering his third year at St. Cassian School. We have been very pleased with the teachers and curriculum. The class size has been perfect (not too small and not too large) for our child. We are also members of the parish and love the religious education aspect of the program. The children are so respectful and thoughtful.
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