American Boys Preparatory Academy Photo - American Boys Prep student learning at his own pace.

Best Mountainside Private Elementary Schools (2026)

For the 2026 school year, there are 2 private elementary schools serving 47 students in Mountainside, NJ.
The average acceptance rate is 75%, which is lower than the New Jersey private elementary school average acceptance rate of 76%.

Private Elementary Schools in Mountainside, NJ (2026)

School
Location
Quick Facts
American Boys Preparatory Academy
American Boys Preparatory Academy Photo - American Boys Prep student learning at his own pace.
All-boys | Alternative School
(1)
1020 Springfield Ave
Mountainside, NJ 07092
(908) 516-4231
Gr: 5-8 | 12 students Avg. class size: 5 students Sports: 1 | Extracurrculars: 7 Tuition & acceptance rate listed
Kohler Academy
Kohler Academy Photo
Special Education School
1137 Globe Ave
Mountainside, NJ 07092
(908) 518-0021
Gr: PK-12 | 35 students

Overview

This Town (Mountainside)
This State (NJ)
# Schools
2 Schools

Student Body:

# Students
47 Students
140,525 Students
% Average Students of Color
60%
40%

Academics and Faculty:

# Teachers
8 Teachers
14,348 Teachers
Average Student-Teacher Ratio
6:1
10:1
% Average Faculty w/Advanced Degree
50%
54%
Average Class Size
5 students
14 students

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$5,400
$18,298
Average Acceptance Rate
75%
76%

Students by Ethnicity:

0.75
0.60
# American Indian Students
n/a
838 Students
% American Indian Students
n/a
n/a
# Asian Students
n/a
8,533 Students
% Asian Students
n/a
6%
# Hispanic Students
4 Students
11,226 Students
% Hispanic Students
11%
8%
# Black Students
3 Students
10,269 Students
% Black Students
9%
7%
# White Students
12 Students
85,983 Students
% White Students
34%
60%
# Hawaiian Students
11 Students
171 Students
% Hawaiian Students
32%
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
5 Students
26,727 Students
% of Others Students
14%
19%
All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
7 extracurriculars
11 extracurriculars
Average Number of Sports
1 sports
6 sports

Frequently Asked Questions

How many private elementary schools are located in Mountainside, NJ?
2 private elementary schools are located in Mountainside, NJ.

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