Excellent
#250 of 2,463 schools in NJ
Top 10% in state
Deerfield Elementary School
Middle School · Mountainside School District
302 CENTRAL AVENUE, Mountainside, NJ 07092
Enrollment
488
Student-Teacher
10.2:1
Score
8.2
Grades
3rd – 8th
Enrollment
488
Student-Teacher
10.2:1
Score
8.2
Grades
3rd – 8th
Updated
2022-23
Updated 2022-23
How this school compares
In Mountainside
#1 of 2
public schools
New Jersey middle schools
#40 of 441
In district
#1 of 2
Mountainside School District
Equity
9.5 / 10
Exceptional
About Deerfield Elementary School
Deerfield Elementary School is a public middle school in Mountainside, NJ, part of the Mountainside School District. The school serves approximately 488 students in grades 3rd – 8th with a student-teacher ratio of 10.2:1. It holds a MySchoolScout rating of 8.2/10, placing it in the 89.9th percentile among NJ schools — an above average rating overall.
Students demonstrate 71% proficiency in math, 29 points above the state average and 79% in reading/language arts, 28 points above the state average. The school scores particularly well in student growth (8.7/10). Located in a neighborhood with a median household income of $210,100, where 66% of adults hold a bachelor's degree or higher.
The school is situated in a large suburban setting.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
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Deerfield Elementary School — Students at Deerfield Elementary School score 76% proficient, which is above what's typical for similar communities (expected: 63%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
2%
Students qualifying for federal meal assistance
Test Scores NJ NJSLA (2023-24)
Based on 19 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: 8.7/10.
How Deerfield Elementary School Compares
See how Deerfield Elementary School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has remained stable from 73% (2019) to 72% (2022). Reading/ELA proficiency has remained stable from 81% (2019) to 81% (2022).
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. Wilson Elementary School (rated 8.5/10, 1.4 miles away, in nearby Westfield), which scores slightly higher. Another option is Jefferson Elementary School (rated 8.4/10, 1.7 miles away, in nearby Summit), with a very similar rating. Additionally, Brayton Elementary School (rated 8.4/10, 2.0 miles away, in nearby Summit), with a very similar 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 | 8.1 |
| Work Readiness Academy Westfield | 1.0 mi | — |
| Wilson Elementary School Westfield | 1.4 mi | 8.5 |
| Beechwood School Mountainside | 1.2 mi | 6.0 |
| TEMPLE EMANU-EL EARLY CHILDHOOD EDUCATION PROGRAM Westfield | 1.6 mi | — |
| Primary Center at Jefferson Summit | 1.7 mi | 6.1 |
| Jefferson Elementary School Summit | 1.7 mi | 8.4 |
| Edward V. Walton Primary School Springfield | 1.4 mi | 4.7 |
| Franklin Elementary School Westfield | 1.7 mi | 6.9 |
| PNS&K Westfield | 1.9 mi | 5.5 |
| WESTFIELD DAYCARE CENTER Westfield | 1.9 mi | 7.2 |
| Washington Elementary School Westfield | 1.7 mi | 7.0 |
| Thelma L. Sandmeier Elementary School Springfield | 1.5 mi | 5.3 |
| 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 | 6.6 |
| Brayton Elementary School Summit | 2.0 mi | 8.4 |
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
Community Profile
The community surrounding Deerfield Elementary School has a median household income of $210,100. It is a well-educated community where 66% of adults hold a bachelor's degree or higher. The median home value in the area is $755,600, with a median rent of $3,501/month. The local poverty rate of 2.8% is relatively low. The average commute in the area is 39 minutes, which is above the national average. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Benjamin Franklin Middle School Ridgewood, NJ | 8.1 |
| Memorial Middle School Fair Lawn, NJ | 8.1 |
| Mount Pleasant Middle School Livingston, NJ | 8.1 |
| Charles DeWolf Middle School Old Tappan, NJ | 8.3 |
| Lakewood Middle School Lakewood, NJ | 8.3 |
| 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 is ranked #250 out of 2,463 schools in NJ.
What is Deerfield Elementary School's MySchoolScout rating?
Deerfield Elementary School has a composite rating of 8.2 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Deerfield Elementary School?
Based on the most recent state assessment data, Deerfield Elementary School has 71.1% math proficiency and 79.4% reading/ELA proficiency.
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 
FBI UCR 2024. City-level (Mountainside). Data >1 year old.
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
- Phone
- (908) 232-8828
- Data Year
- 2023–2024
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
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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