Enrollment
512
New Jersey · 2024-25 NCES data
Middle school (grades 6-8) · Montclair, NJ
Federal NCES profile for Glenfield Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 50/100.
The verdict
Glenfield Middle School earns 50/100 on the Resource Investment Index, with class sizes smaller than 93% of New Jersey schools.
Glenfield Middle School has class sizes smaller than 93% of New Jersey schools. Computed live against every New Jersey school reporting to NCES.
By Resource Investment Index, Glenfield Middle School ranks #5 of 8 public schools in Montclair, NJ.
NCES ID 341056002172 Verify on NCES CCD record →
Enrollment
512
New Jersey · 2024-25 NCES data
Teachers (FTE)
64.0
Federal CCD staff survey
Students per teacher
8:1
vs 11.8:1 New Jersey avg
-32% vs state
Free-lunch eligible
14.1%
vs 29.6% New Jersey avg
-52% vs state
How Glenfield Middle School compares with New Jersey and U.S. medians
Smaller classes than state median
8:1 - 3.8 below the New Jersey state median of 11.8:1, indicating smaller average class loads than typical schools in the state.
Glenfield Middle School is a lower-poverty, mid-sized middle school in Montclair, New Jersey, enrolling 512 students.
Classes run notably small here: at 8:1, Glenfield Middle School is leaner than roughly 93% of New Jersey schools and 32% under the state's 11.8:1 norm, more adult attention per pupil than most peers.
Economic need runs somewhat below the state's typical profile, with 14.1% of students eligible for free meals.
With 512 students, its enrollment sits close to the New Jersey median campus size.
Its Resource Investment Index sits near the middle of the pack among 2,501 scored New Jersey schools.
Against 731 statewide peers matched on enrollment and economic need, it ranks mid-pack at #471.
Its student body is led by White (47%) and African American (21%) (diversity index 70/100).
Counselor coverage runs a bit thin, about 256 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance runs somewhat below the norm, with 18.8% of students chronically absent per the 2021-22 civil-rights collection.
Discipline events run high: 118 in- and out-of-school suspensions were reported for 512 students in the 2021-22 Civil Rights Data Collection.
Montclair Public School District also operates Montclair High School (1,925 students) and Hillside Elementary School (684 students) alongside Glenfield Middle School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Glenfield Middle School on the metrics families compare, against New Jersey and U.S. means.
| Metric | This school | vs New Jersey | New Jersey avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 8:1 | ▼ 32% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 14.1% | ▼ 52% | 29.6% | 51.7% |
| Enrollment | 512 | top 38% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: White at 46.5% of enrollment.
Simpson diversity index - at 69.9, Glenfield Middle School is more mixed than the New Jersey school average of 51.2.
District-wide per-pupil expenditure for Montclair Public School District, which includes Glenfield Middle School.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Montclair High School | Larger | Similar economic need | Higher S:T ratio |
| Hillside Elementary School | Larger | Similar economic need | Higher S:T ratio |
| Buzz Aldrin Middle School | Similar size | Similar economic need | Higher S:T ratio |
| Charles H. Bullock School | Similar size | Similar economic need | Higher S:T ratio |
| Watchung Elementary School | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Glenfield Middle School's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of New Jersey, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Glenfield Middle School's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Glenfield Middle School has 512 students enrolled. It is a middle school in Montclair, NJ.
The student-teacher ratio at Glenfield Middle School is 8:1, which is 32% lower than the New Jersey average of 11.8:1 and 49% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
14.1% of students at Glenfield Middle School are eligible for free lunch, compared to the New Jersey average of 29.6%.
The largest demographic group at Glenfield Middle School is White at 46.5% of enrollment, in Montclair, NJ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 69.9/100.
Glenfield Middle School has a Resource Investment Index of 50/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Glenfield Middle School ranks #5 of 8 public schools in Montclair, NJ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Montclair on the city page.
Glenfield Middle School earns 50/100 on the Resource Investment Index, with class sizes smaller than 93% of New Jersey schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Glenfield Middle School, Montclair Public School District also operates Montclair High School (1,925 students), Hillside Elementary School (684 students), and Buzz Aldrin Middle School (618 students). See the Montclair Public School District district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “Glenfield Middle School, Montclair NJ.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/glenfield-middle-school-nj
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