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 2025 school year, there are 2 public elementary schools serving 748 students in Mountainside School District. This district's average elementary testing ranking is 10/10, which is in the top 5% of public elementary schools in New Jersey.
Public Elementary Schools in Mountainside School District have an average math proficiency score of 76% (versus the New Jersey public elementary school average of 39%), and reading proficiency score of 81% (versus the 49% statewide average).
Minority enrollment is 31% of the student body (majority Hispanic), which is less than the New Jersey public elementary school average of 63% (majority Hispanic).
Overview
This School District
This State (NJ)
# Schools
2 Schools
1,930 Schools
# Students
748 Students
886,629 Students
# Teachers
73 Teachers
77,858 Teachers
Student : Teacher Ratio
10:1
10:1
Student By Grade
District Rank
Mountainside School District, which is ranked within the top 5% of all 645 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%
Students by Ethnicity:
Diversity Score
0.50
0.72
% American Indian
n/a
n/a
% Asian
9%
10%
% Hispanic
13%
34%
% Black
1%
15%
% White
69%
37%
% Hawaiian
n/a
n/a
% Two or more races
8%
4%
All Ethnic Groups
District Revenue and Spending
The revenue/student of $30,774 is higher than the state median of $26,931. The school district revenue/student has stayed relatively flat over four school years.
The school district's spending/student of $28,909 is higher than the state median of $25,828. 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
$26,931
Spending / Student
$28,909
$25,828
Best Mountainside School District Public Elementary Schools (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
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
Grades: 3-8
| 488 students
Rank: n/an/a
1497 Woodacres Dr
Mountainside, NJ 07092
(908) 301-9104
Mountainside, NJ 07092
(908) 301-9104
Grades: PK-2
| 260 students
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