John L. Costley Middle School
🇺🇸 Official data · 2025East Orange, New Jersey 07017 · East Orange School District
#382 of 440 middle schools in New Jersey
#10215 of 15,369 nationally
About John L. Costley Middle School
John L. Costley Middle School is a public middle located in East Orange, in the East Orange School District school district of New Jersey, United States. It caters for Grades 6–8. In 2025 it enrolled 334 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 38.3 out of 100, placing it in the lower 50% of middle schools in United States and 382nd of 440 ranked middle schools in New Jersey. Its strongest component is community advantage (fewer free/reduced-price lunch) (98th percentile), and its weakest is math proficiency (2th percentile).
Other published figures: enrollment 334.
There are 21 schools in East Orange; John L. Costley Middle School ranks 11th of 20 scored schools there.
Success Index (US) breakdown
Each component is a percentile against middle schools across United States.
- Math proficiency (30%)7%
- Reading proficiency (30%)29%
- Community advantage (fewer free/reduced-price lunch) (25%)9.9%
- Students per teacher (15%)13.9
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for John L. Costley Middle School by the official sources.
- Enrollment
- 334
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 9.9%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 13.9
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 29%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 7%
- Share of tested students proficient or above (all students, all grades).
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Schools near John L. Costley Middle School
Closest schools by straight-line distance, with their Success Index (US).
Sojourner Truth Middle School
East Orange · Public middle · Grades 6–8
264 students · 60 m away
Patrick F. Healy Middle School
East Orange · Public middle · Grades 6–8
322 students · 120 m away
Edward T. Bowser Sr. School of Excellence
East Orange · Public elementary · Grades PK–5
612 students · 199 m away
East Orange Campus High School
East Orange · Public high · Grades 9–12
1,798 students · 363 m away
Wahlstrom Early Childhood Academy
East Orange · Public elementary · Grades PK–K
157 students · 473 m away
J. Garfield Jackson Sr. Academy
East Orange · Public elementary · Grades PK–5
247 students · 569 m away
East Orange STEM Academy High School
East Orange · Public high · Grades 6–12
646 students · 688 m away
Althea Gibson Academy
East Orange · Public elementary · Grades PK–K
144 students · 776 m away
Shelia Y. Oliver Academy
East Orange · Public elementary · Grades PK–8
413 students · 861 m away
Cicely L. Tyson Community Middle/High School
East Orange · Public high · Grades 6–12
701 students · 964 m away
Similar schools
Public middle schools in New Jersey with a comparable Enrollment.
Lincoln Middle School
Dunellen · Public middle · Grades 6–8
333 students
Lopatcong Township Middle School
Phillipsburg · Public middle · Grades 5–8
335 students
Sandman Consolidated School
Cape May · Public middle · Grades 5–6
332 students
Jordan Road Elementary School
Somers Point · Public middle · Grades 4–8
339 students
Somerville Middle School
Somerville · Public middle · Grades 6–8
339 students
Thomas Jefferson Intermediate School
Trenton · Public middle · Grades 4–6
329 students
Frequently asked questions
Is John L. Costley Middle School a good school?
John L. Costley Middle School has a Success Index (US) of 38.3 out of 100 (Lower 50% of middle schools in United States) and ranks #382 of 440 in New Jersey. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does John L. Costley Middle School rank in New Jersey?
John L. Costley Middle School ranks #382 of 440 middle schools in New Jersey and #10215 of 15,369 nationally on the Success Index (US) (2025 data).
How many students attend John L. Costley Middle School?
John L. Costley Middle School had 334 students in 2025.
Is John L. Costley Middle School a elementary school or a high school?
John L. Costley Middle School is classified as a middle covering Grades 6–8. It is a public school.
What other schools are near John L. Costley Middle School?
There are 10 schools within 15 km of John L. Costley Middle School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.