Excellent
#214 of 2,466 schools in NJ
Top 9% in state
Deerfield Elementary School
Middle School · Mountainside School District
302 CENTRAL AVENUE, Mountainside, NJ 07092
Enrollment
488
Student-Teacher
10.2:1
Score
8.4
Grades
3rd – 8th
Enrollment
488
Student-Teacher
10.2:1
Score
8.4
Grades
3rd – 8th
Data vintage
2022-23
Data vintage2022-23
How this school compares
New Jersey schools
#214 of 2,466
In Mountainside
#1 of 2
public schools
In district
#1 of 2
Mountainside School District
Equity
9.5 / 10
Excellent
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Deerfield Elementary School
Middle School in Mountainside · grades 3rd – 8th. Start here, then compare fit against nearby and district options.
Kohler Academy
0.6 mi away. Use as a geographic alternative in the same move search.
Primrose School at Mountainside
0.9 mi away. Use as a geographic alternative in the same move search.
About Deerfield Elementary School
Deerfield Elementary School is a public middle school in Mountainside, NJ, part of Mountainside School District. Deerfield Elementary School serves approximately 488 students, and covers grades 3rd-8th, and has a 10.2:1 student-teacher ratio. Deerfield Elementary School has a current MySchoolScout rating of 8.4 out of 10 and ranks #214 of 2,466 schools in NJ.
Structured state assessment records for Deerfield Elementary School show 74% math proficiency (multi-year average, 2009-2025) and 78% reading/ELA proficiency (multi-year average, 2009-2025).
- This school 8.4 · Excellent
- NJ avg 6.9
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Deerfield Elementary School — Students at Deerfield Elementary School score 80% proficient, which is above what's typical for similar communities (expected: 67%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
2%
Students qualifying for federal meal assistance
Test Scores NJ NJSLA (2024-25)
Based on 53 test records from NJ state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 7.6/10.
How Deerfield Elementary School Compares
See how Deerfield Elementary School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
302 CENTRAL AVENUE, Mountainside, NJ 07092
Nearby Alternatives
Families considering Deerfield Elementary School may also want to explore other middle schools in the area. Crossroads School (rated 8.8/10, 1.0 miles away, in nearby Westfield), which scores slightly higher. Another option is Wilson Elementary School (rated 8.6/10, 1.4 miles away, in nearby Westfield), with a very similar rating. Additionally, KOHLER ACADEMY (rated 7.6/10, 0.6 miles away), with a comparable rating. For more schools in Mountainside, see our Mountainside schools guide .
Nearby Schools
20 within 2.0 mi| School | Distance | Rating |
|---|---|---|
| KOHLER ACADEMY Mountainside | 0.6 mi | 7.6 |
| PRIMROSE SCHOOL AT MOUNTAINSIDE Mountainside | 0.9 mi | — |
| Crossroads School Westfield | 1.0 mi | 8.8 |
| Work Readiness Academy Westfield | 1.0 mi | — |
| Wilson Elementary School Westfield | 1.4 mi | 8.6 |
| Beechwood School Mountainside | 1.2 mi | 6.9 |
| TEMPLE EMANU-EL EARLY CHILDHOOD EDUCATION PROGRAM Westfield | 1.6 mi | — |
| Primary Center at Jefferson Summit | 1.7 mi | 4.9 |
| Jefferson Elementary School Summit | 1.7 mi | 6.9 |
| Edward V. Walton Primary School Springfield | 1.4 mi | 5.6 |
| Franklin Elementary School Westfield | 1.7 mi | 7.3 |
| PNS&K Westfield | 1.9 mi | 5.5 |
| WESTFIELD DAYCARE CENTER Westfield | 1.9 mi | 7.2 |
| Washington Elementary School Westfield | 1.7 mi | 7.5 |
| Thelma L. Sandmeier Elementary School Springfield | 1.5 mi | 7.1 |
| WESTFIELD AREA Y KINDERGARTEN Westfield | 1.9 mi | — |
| ST PAULS DAY SCHOOL Westfield | 1.9 mi | 3.8 |
| COMPASS SCHOOL HOUSE Westfield | 2.0 mi | — |
| Roosevelt Intermediate School Westfield | 2.1 mi | 6.7 |
| Brayton Elementary School Summit | 2.0 mi | 6.5 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 07092 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$210,100
Median Home Value
$755,600
Median Rent
$3,501/mo
Population
6,967
College Educated
66.2%
Homeownership
86.9%
Avg Commute
38.9 min
Poverty Rate
2.8%
Median Age
48.7
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Dwight D. Eisenhower Middle School Wyckoff, NJ | 8.4 |
| Henry B. Whitehorne Middle School Verona, NJ | 8.4 |
| Demarest Middle School Demarest, NJ | 8.3 |
| George G White Hillsdale, NJ | 8.5 |
| Hasbrouck Heights Middle School Hasbrouck Heights, NJ | 8.5 |
| Liberty Middle School West Orange, NJ | 8.3 |
Frequently Asked Questions
Common questions about Deerfield Elementary School
What grades does Deerfield Elementary School serve?
Deerfield Elementary School serves students in grades 3rd through 8th.
How many students attend Deerfield Elementary School?
Deerfield Elementary School has an enrollment of approximately 488 students.
What is the student-teacher ratio at Deerfield Elementary School?
The student-teacher ratio at Deerfield Elementary School is 10.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Deerfield Elementary School rank in NJ?
Deerfield Elementary School ranks #214 of 2,466 schools in NJ.
What is Deerfield Elementary School's MySchoolScout rating?
Deerfield Elementary School has a current MySchoolScout rating of 8.4 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Deerfield Elementary School?
Based on loaded state assessment records, Deerfield Elementary School has 74% math proficiency (multi-year average, 2009-2025) and 78% reading/ELA proficiency (multi-year average, 2009-2025).
Is Deerfield Elementary School a charter school?
No, Deerfield Elementary School is not a charter school. It is a traditional public school operated by the local school district.
Is Deerfield Elementary School a Title I school?
No, Deerfield Elementary School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Deerfield Elementary School?
2.0% of students at Deerfield Elementary School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 3rd – 8th
- Enrollment
- 488
- Student-Teacher Ratio
- 10.2:1
- Teachers (FTE)
- 48
- Free/Reduced Lunch
- 2.0%
- Type
- regular
- Setting
- Large Suburb
- County
- Union County
- Chronic Absenteeism (SY 2022-23)
- 4.1%
- Phone
- (908) 232-8828
Resources & Links
District
Mountainside School District- District Enrollment
- 760
- Schools in District
- 2
- Per-Pupil Spending
- $23,457
- District Rank
- #1 of 2
Other Schools in This District
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