St. Joseph Elementary School is a small Catholic school located in the heart of historic Mendham Borough in Morris County, New Jersey.
The education mission of St. Joseph School encompasses four dimensions: message, community, worship, and service.
As proclaimers of the Gospel message of peace, hope, and love, all that we do should reflect this in our way of life.
Our faith community is strengthened and unified through prayer, Eucharistic celebrations, and religious projects.
This nurturing and support moves us to direct our energies to the world.
Such activities as value sharing, role modeling, and participation in various community projects, build upon the concept of social justice.
Through love and service our hearts and minds turn outward to build the Kingdom of God here on earth.
The St. Joseph School faculty consists of ten full-time and nine part-time teachers, a full-time library/media specialist, a part-time guidance counselor, and a full-time nurse.
A part-time supplemental instructor and a speech teacher instruct classified students.
All full-time teachers are certified and well trained in subject matter and pedagogy.
Staff development is a crucial part of improving the educational program, and teachers take advantage of a wide variety of opportunities to enhance their skills.
Quick Stats (2025)
- Grades: Nursery/Preschool-8
- Enrollment: 156 students
- Application Deadline: None / Rolling
- Source: Verified school update
School Overview
School Membership(s)School Assoc.
Religious Affiliation
Grades Offered
Grades Nursery/Preschool-8
Awards
Blue Ribbon School - Selected in 2012
Student Body
Total Students
156 students
Student Body Type
Co-ed
% Students of Color
2%
State avg.: 39%
Students by Grade

Academics and Faculty
Total Classroom Teachers
14 teachers
Student : Teacher Ratio
11:1
National avg.: 13:1
Tuition and Acceptance Rate
Admission Deadline
None / Rolling
School Notes
- St. Joseph Elementary School is a small Catholic school located in the heart of historic Mendham Borough in Morris County, New Jersey. The education mission of St. Joseph School encompasses four dimensions: message, community, worship, and service. As proclaimers of the Gospel message of peace, hope, and love, all that we do should reflect this in our way of life. Our faith community is strengthened and unified through prayer, Eucharistic celebrations, and religious projects. This nurturing and support moves us to direct our energies to the world. Such activities as value sharing, role modeling, and participation in various community projects, build upon the concept of social justice. Through love and service our hearts and minds turn outward to build the Kingdom of God here on earth. The St. Joseph School faculty consists of ten full-time and nine part-time teachers, a full-time library/media specialist, a part-time guidance counselor, and a full-time nurse. A part-time supplemental instructor and a speech teacher instruct classified students. All full-time teachers are certified and well trained in subject matter and pedagogy. Staff development is a crucial part of improving the educational program, and teachers take advantage of a wide variety of opportunities to enhance their skills.
Source: Verified school update
Frequently Asked Questions
When is the application deadline for St. Joseph School?
The application deadline for St. Joseph School is rolling (applications are reviewed as they are received year-round).
In what neighborhood is St. Joseph School located?
St. Joseph School is located in the Brookside neighborhood of Mendham, NJ.
School Reviews
5 1/17/2023
Hi there, our daughter graduated from St. Joseph's 1993, we felt the best education for her, it was the stepping stone for years to come. My question is, has the school reopened? We were very sad when we read it had closed several years ago, thank you. It will always hold a special spot in our hearts.
5 2/21/2019
We 100% recommend St. Joseph School! We moved our children from the public school to St. Joe's several years ago and have been so impressed with the quality of education they have received. My son graduated last year and now attends Delbarton. I do not believe he would have had the same drive and quest for excellence had he not been a student at St. Joe's.
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