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Mountainside School District


At a glance
50thof 609 New Jersey districts▲ 4
Better than 91% of New Jersey districts
Elementary 1Middle 1Grades PK, KG-8
1497 Woodacres Drive
Mountainside, NJ 07092
·(908) 232-8828·All New Jersey district rankings →
Statewide performance 2017–2025
2025: better than 91.8% of districts
2
Schools
748
Students
Top rankedDeerfield Elementary School92nd of 752 New Jersey middle schools
Summary:

The Mountainside School District in New Jersey consists of two schools: Deerfield Elementary School, a middle school serving grades 3-8, and Beechwood School, an elementary school serving grades PK-2. The district is highly ranked, placing 50th out of 609 districts in the state and earning a 5-out-of-5-star rating from SchoolDigger.

Within the district, Deerfield Elementary School stands out as the top performer, with consistently high test scores that exceed both district and state averages in English Language Arts, Mathematics, and Science. The school has a low chronic absenteeism rate of 14.9% and a relatively small student-teacher ratio of 9.9, indicating smaller class sizes. Despite its stronger academic outcomes, Deerfield Elementary School spends less per student ($8,613) compared to Beechwood School ($10,222).

While both schools have the same chronic absenteeism rate of 14.9%, the district as a whole appears to be providing a quality education, as evidenced by its high ranking and 5-star rating. The data suggests that Deerfield Elementary School is the standout performer in the Mountainside School District, with its exceptional academic achievement and efficient resource allocation.

Ranking:
Map legend
E Elementary M Middle H High A Alternative P Private




SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the New Jersey Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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