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 2026 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 64% (majority Hispanic).

Overview

This School District
This State (NJ)
# Schools
2 Schools
1,914 Schools
# Students
748 Students
883,477 Students
# Teachers
65 Teachers
77,662 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.
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%
35%
% Black
1%
15%
% White
69%
36%
% 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 $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.
This School District
This State (NJ)
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 Elementary Schools (2026)

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 | 483 students Student-teacher ratio: 11:1 Minority enrollment: 31%
Rank: n/an/a
Beechwood School
1497 Woodacres Dr
Mountainside, NJ 07092
(908) 301-9104
Gr: PK-2 | 265 students Student-teacher ratio: 13:1 Minority enrollment: 33%

Recent Articles

When “Free Public School” Still Isn’t Free
When “Free Public School” Still Isn’t Free
Discover the hidden costs of public school in 2026, from supplies and fees to transportation, technology, and extracurricular expenses.
What a District Budget Cut Means for Your Child's School Experience
What a District Budget Cut Means for Your Child's School Experience
Learn how district budget cuts can affect class sizes, programs, staffing, transportation, and your child's daily school experience in 2026.
School Closure Risk: What Parents Should Check Before Moving
School Closure Risk: What Parents Should Check Before Moving
Learn how parents can assess school closure risk before buying or renting in a district, using enrollment, funding, and boundary data.

Quick Facts (2026)

  • District size: 2 schools
  • Grades: PK-08
  • Enrollment: 748 students
  • Student-Teacher Ratio: 12:1
  • 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

Quick Links