For the 2026-27 school year, there is 1 public middle school serving 483 students in Mountainside, NJ.
The top-ranked public middle school in Mountainside, NJ is Deerfield Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Mountainside, NJ public middle school have an average math proficiency score of 76% (versus the New Jersey public middle school average of 34%), and reading proficiency score of 81% (versus the 48% statewide average). Middle schools in Mountainside have an average ranking of 10/10, which is in the top 5% of New Jersey public middle schools.
Minority enrollment is 31% of the student body (majority Hispanic), which is less than the New Jersey public middle school average of 69% (majority Hispanic).
Best Public Middle Schools in Mountainside, NJ (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Deerfield Elementary School
(Math: 76% | Reading: 81%)
Rank:
Rank:
10/
Top 10%10
302 Central Avenue
Mountainside, NJ 07092
(908) 232-8828
Mountainside, NJ 07092
(908) 232-8828
Gr: 3-8 | 483 students Student-teacher ratio: 11:1 Minority enrollment: 31%
Frequently Asked Questions
What are the top-ranked public middle schools in Mountainside, NJ?
The top-ranked public middle schools in Mountainside, NJ include Deerfield Elementary School.
How many public middle schools are located in Mountainside?
1 public middle schools are located in Mountainside.
What is the racial composition of students in Mountainside?
Mountainside public middle schools minority enrollment is 31% of the student body (majority Hispanic), which is less than the New Jersey public middle schools average of 69% (majority Hispanic).
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