For the 2026 school year, there is 1 private school serving 281 students in Watchung, NJ (there are , serving 667 public students). 30% of all K-12 students in Watchung, NJ are educated in private schools (compared to the NJ state average of 14%).
The top-ranked private school in Watchung, NJ is Mount Saint Mary Academy.
100% of private schools in Watchung, NJ are religiously affiliated (most commonly Catholic).
Top-Ranked Watchung 草榴社区 Schools (2026)
School
Location
Quick Facts
Mount Saint Mary Academy
All-girls (Catholic)
1645 US Highway 22 W
Watchung, NJ 07069
(908) 757-0108
Watchung, NJ 07069
(908) 757-0108
Gr: 9-12 | 281 students Avg. class size: 15 students Sports: 13 | Extracurrculars: 53 Tuition listed
Overview
This Town (Watchung)
This State (NJ)
# Schools
1 School
Student Body:
# Students
281 Students
216,378 Students
% Average Students of Color
13%
40%
Academics and Faculty:
# Teachers
37 Teachers
20,264 Teachers
Average Student-Teacher Ratio
8:1
11:1
Average Class Size
15 students
14 students
Average Number of AP Courses
20 courses
15 courses
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$35,000
$18,784
Average % on Financial Aid
23%
27%
Average Financial Aid Grant
$8,000
$15,816
Students by Ethnicity:
Diversity Score
0.24
0.63
# American Indian Students
n/a
942 Students
% American Indian Students
n/a
n/a
# Asian Students
5 Students
11,318 Students
% Asian Students
1%
5%
# Hispanic Students
21 Students
15,574 Students
% Hispanic Students
6%
7%
# Black Students
6 Students
14,113 Students
% Black Students
2%
7%
# White Students
320 Students
116,209 Students
% White Students
87%
54%
# Hawaiian Students
16 Students
292 Students
% Hawaiian Students
4%
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
n/a
58,691 Students
% of Others Students
n/a
27%
All Ethnic Groups
Extracurriculars and Sports:
Average Number of Extracurriculars
53 extracurriculars
12 extracurriculars
Average Number of Sports
13 sports
7 sports
Frequently Asked Questions
What are the top-ranked private schools in Watchung, NJ?
The top-ranked private schools in Watchung, NJ is Mount Saint Mary Academy.
How many private schools are located in Watchung?
1 private schools are located in Watchung.
What percentage of students in Watchung go to private school?
30% of all K-12 students in Watchung are educated in private schools (compared to the NJ state average of 14%).
What percentage of private schools are religiously affiliated in Watchung?
100% of private schools in Watchung are religiously affiliated (most commonly Catholic).
Recent Articles
Ask Current Parents What Admissions Won't Answer
Learn how to ask current private school parents revealing questions about culture, academics, communication, costs, discipline, and community life before deciding whether a school truly fits your family well.
When School Anxiety Is Really a School Fit Problem
Learn when school anxiety may signal a poor school fit, how parents can identify academic or social mismatches, and when changing private schools deserves serious consideration for families today.
Will My Child Find Their People? Evaluating School Culture
Learn how to evaluate private school culture, student belonging, friendships, teacher relationships, social dynamics, and authentic community fit so your child can find the right place to thrive and connect.