New JerseySchoolsDeerfield Elementary School

Deerfield Elementary School

PublicGrades 38
MOUNTAINSIDE, New Jersey · Mountainside School District
SCHOOL SNAPSHOT
Students488
Student:Teacher10.2:1
Free/Reduced Lunch2%
Title INo

Academic Performance

State accountability indicators and test performance.

State accountability data coming soon

Student test scores

Percentage of students who met or exceeded the grade-level standard on the most recent state assessment. Each tile is colour-coded: green ≥50%, amber 35-49%, red <35%.

ELA · NJSLA

Grade 3
71%
n=77
Grade 4
83%
n=93
Grade 5
80%
n=76
Grade 6
90%
n=78
Grade 7
86%
n=84
Grade 8
81%
n=80

Math · NJSLA

Grade 3
85%
n=77
Grade 4
84%
n=93
Grade 5
82%
n=76
Grade 6
79%
n=78
Grade 7
77%
n=66

Source: NJSLA 2025. “Proficient” includes students who met or exceeded the standard; small-cell data (fewer than ~10 students) is suppressed by the state and shown as “—”.

How this state measures performance

State-specific testing and accountability details will appear here once the NJ Department of Education data ingest completes.