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Mountainside School District

1497 Woodacres Drive
Mountainside, NJ 07092
(District boundaries shown in map)
10/
10
Top 5%

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 2025-26 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.
This School District
State Average (NJ)
#30 out of 648 school districts
(Top 5%)
76%
38%
81%
49%
40-44%
23%

Students by Ethnicity:

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.
This School District
This State (NJ)
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 (2025-26)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Deerfield Elementary School
(Math: 76% | Reading: 81%)
Rank:
10/
10
Top 10%
302 Central Avenue
Mountainside, NJ 07092
(908) 232-8828
Gr: 3-8 | 488 students Student-teacher ratio: 10:1 Minority enrollment: 32%
Rank: n/an/a
Beechwood School
1497 Woodacres Dr
Mountainside, NJ 07092
(908) 301-9104
Gr: PK-2 | 260 students Student-teacher ratio: 11:1 Minority enrollment: 30%

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Quick Facts (2025-26)

  • District size: 2 schools
  • Grades: PK-08
  • Enrollment: 748 students
  • Student-Teacher Ratio: 10:1
  • Minority Enrollment: 31%
  • : Top 5% in NJ
  • : 76% (Top 5%)
  • : 81% (Top 10%)
  • : 40-44% (Top 20%)
  • Source: National Center for Education Statistics (NCES), NJ Dept. of Education

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