New JerseySchoolsJohn L. Costley Middle School

John L. Costley Middle School

PublicGrades 68
EAST ORANGE, New Jersey · East Orange School District
SCHOOL SNAPSHOT
Students320
Student:Teacher12.8:1
Free/Reduced Lunch59%
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 7
9%
n=200
Grade 8
17%
n=108

Math · NJSLA

Grade 7
4%
n=218
Grade 8
12%
n=106

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.