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 are 2 public schools serving 748 students in Mountainside School District. This district's average testing ranking is 10/10, which is in the top 5% of public schools in New Jersey.
Public Schools in Mountainside School District have an average math proficiency score of 76% (versus the New Jersey public school average of 38%), 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 school average of 63% (majority Hispanic).
Overview
This School District
This State (NJ)
# Schools
2 Schools
2,556 Schools
# Students
748 Students
1,355,555 Students
# Teachers
65 Teachers
116,382 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%
Students by Ethnicity:
Diversity Score
0.50
0.72
% American Indian
n/a
n/a
% Asian
9%
11%
% Hispanic
13%
35%
% Black
1%
14%
% White
69%
37%
% 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 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%
Rank: n/an/a
1497 Woodacres Dr
Mountainside, NJ 07092
(908) 301-9104
Mountainside, NJ 07092
(908) 301-9104
Gr: PK-2 | 265 students Student-teacher ratio: 13:1 Minority enrollment: 33%
Frequently Asked Questions
How many schools belong to Mountainside School District?
Mountainside School District manages 2 public schools serving 748 students.
What is the rank of Mountainside School District?
Mountainside School District is ranked #30 out of 642 school districts in New Jersey (top 5%) based off of combined math and reading proficiency testing data for the 2022-2023 school year. This district ranks in the top 20% of New Jersey school districts for: Highest overall rank (Top 5%), Highest math proficiency (Top 5%), Highest reading/language arts proficiency (Top 10%) and Highest science proficiency (Top 20%)
What is the racial composition of students in Mountainside School District?
69% of Mountainside School District students are White, 13% of students are Hispanic, 9% of students are Asian, 8% of students are Two or more races, and 1% of students are Black.
What is the student/teacher ratio of Mountainside School District?
Mountainside School District has a student/teacher ratio of 12:1, which is equal to the New Jersey state average of 12:1.
What is Mountainside School District's spending/student ratio?
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.
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