Schools in Mountainside, New Jersey (2025)
2 schools · 748 students · 2 public · median Enrollment 483.
Ranked schools in Mountainside
Ordered by Success Index (US). Rank positions shown on each profile are within United States and New Jersey.
- 194Deerfield Elementary SchoolMountainside · Public Middle73% Math proficiency · 483 students
- 287Beechwood SchoolMountainside · Public Elementary3.8% Free/reduced-price lunch · 265 students
| # | School | Sector | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|
| 1 | Deerfield Elementary School Mountainside · Middle · Grades 3–8 | Public | 93.9 Top 5% | 73% Math proficiency | 483 |
| 2 | Beechwood School Mountainside · Elementary · Grades PK–2 | Public | 86.6 Top 5% | 3.8% Free/reduced-price lunch | 265 |
Compare the top 2 schools in Mountainside side by side →
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Frequently asked questions
What is the best school in Mountainside?
Deerfield Elementary School is the highest-ranked school in Mountainside with a Success Index (US) of 93.9 out of 100 (Top 5% of middle schools in United States).
How many schools are in Mountainside?
Mountainside has 2 schools (1 middle, 1 elementary) educating 748 students in 2025.
What is the typical Enrollment in Mountainside?
The median Enrollment across schools in Mountainside is 483. Students enrolled in the latest NCES directory year.