Top Rankings
Mountainside School District ranks among the top 20% of public school district in New Jersey for:
Category
Attribute
Overall Rank
Highest overall rank (Top 5%)
Math Proficiency
Highest math proficiency (Top 5%)
Reading/Language Arts Proficiency
Highest reading/language arts proficiency (Top 10%)
Science Proficiency
Highest science proficiency (Top 20%)
For the 2026 school year, there is 1 public middle school serving 483 students in Mountainside School District. This district's average middle testing ranking is 10/10, which is in the top 5% of public middle schools in New Jersey.
Public Middle School in Mountainside School District 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).
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).
Overview
This School District
This State (NJ)
# Schools
2 Schools
833 Schools
# Students
748 Students
459,259 Students
# Teachers
65 Teachers
39,700 Teachers
Student-Teacher Ratio
12:1
12:1
Student By Grade
District Rank
Mountainside School District, which is ranked within the top 5% of all 642 school districts in New Jersey (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
Overall District Rank
#30 out of 648 school districts
(Top 5%)
(Top 5%)
Math Test Scores (% Proficient)
76%
38%
Reading/Language Arts Test Scores (% Proficient)
81%
49%
Science Test Scores (% Proficient)
40-44%
23%
Chronically Absent Students
(2022-23)5.9%
16.7%
Students by Ethnicity:
Diversity Score
0.50
0.72
% American Indian
n/a
n/a
% Asian
9%
9%
% Hispanic
13%
39%
% Black
1%
18%
% White
69%
31%
% Hawaiian
n/a
n/a
% Two or more races
8%
3%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $30,774 is higher than the state median of $27,031. The school district revenue/student has grown by 6% over four school years.
The school district's spending/student of $28,909 is higher than the state median of $25,924. The school district spending/student has stayed relatively flat over four school years.
Total Revenue
$23 MM
$36,642 MM
Spending
$22 MM
$35,142 MM
Revenue / Student
$30,774
$27,031
Spending / Student
$28,909
$25,924
Best Mountainside School District Public Middle Schools (2026)
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%
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