Enrollment
662
New York · 2024-25 NCES data
Middle school (grades 6-8) · Brooklyn, NY
Jhs 78 Roy H Mann
Federal NCES profile for Jhs 78 Roy H Mann, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 24/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 360015302007
👥 S:T ratio 32
🌟 Gifted program 30
📋 Attendance 8
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Jhs 78 Roy H Mann earns 24/100 on the Resource Investment Index, with class sizes larger than 94% of New York schools. It is also more racially and ethnically mixed than most New York schools.
- #93 of 94
- middle schools in Brooklyn · Resource Index
- 24
- Resource Index · Lower
- 17:1
- large classes for New York
- 68.6%
- free-lunch eligible
Jhs 78 Roy H Mann has class sizes larger than 94% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Jhs 78 Roy H Mann ranks #93 of 94 middle schools in Brooklyn, NY.
School address
District: New York City Geographic District #22 · New York
NCES ID 360015302007 Verify on NCES CCD record →
Teachers (FTE)
39.0
Federal CCD staff survey
Students per teacher
17:1
vs 11.8:1 New York avg
+44% vs state
Free-lunch eligible
68.6%
vs 56.2% New York avg
+22% vs state
Student-teacher ratio in context
How Jhs 78 Roy H Mann compares with New York and U.S. medians
What stands out at Jhs 78 Roy H Mann
Jhs 78 Roy H Mann is a higher-need, mid-sized middle school in Brooklyn, New York, enrolling 662 students.
Class loads run heavy: 17:1 is larger than about 94% of New York schools and 44% above the 11.8:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat above the state's typical profile, with 68.6% of students eligible for free meals.
Enrollment of 662 puts it in the larger third of New York schools by headcount.
Its Resource Investment Index trails 96% of the 4,801 New York schools with a score on record, one of the lower results on this measure.
Among 634 similarly sized, similarly resourced-need New York schools statewide, it ranks #524, in the lower tier once campus size and economic need are matched.
Its student body is led by African American (49%) and White (19%), more mixed than most schools in the state (diversity index 68/100).
Chronic absenteeism is elevated: 36.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
New York City Geographic District #22 also operates James Madison High School (3,983 students) and Midwood High School (3,657 students) alongside Jhs 78 Roy H Mann.
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
How Jhs 78 Roy H Mann compares
Jhs 78 Roy H Mann on the metrics families compare, against New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17:1 | ▲ 44% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 68.6% | ▲ 22% | 56.2% | 51.7% |
| Enrollment | 662 | top 21% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17:1
Leaner classes than 30% of US schools, heavier class loads than most.
662
Bigger than 78% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
68.6%
free-lunch eligible
- 22% above the New York average of 56.2%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
17:1
students per teacher
- 44% above state mean
Top 94% in New York - lower ratio than 6% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
36.6%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
African American 49.1%
White 19.0%
Hispanic or Latino 18.1%
Asian 10.3%
Two or More 2.9%
American Indian / Alaska Native 0.5%
Native Hawaiian / Pacific Islander 0.2%
Largest group: African American at 49.1% of enrollment.
Student-body diversity index 67.9/100
Simpson diversity index - at 67.9, Jhs 78 Roy H Mann is more mixed than the New York school average of 45.5.
How Jhs 78 Roy H Mann Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| James Madison High School | Larger | Similar economic need | Higher S:T ratio |
| Midwood High School | Larger | Similar economic need | Similar S:T ratio |
| Ps 206 Joseph F Lamb | Larger | Similar economic need | Lower S:T ratio |
| Jhs 234 Arthur W Cunningham | Larger | Similar economic need | Lower S:T ratio |
| Ps 197 Kings Highway Academy (the) | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Jhs 78 Roy H Mann's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,983
- Students per teacher
- 18.9:1
- Resource Index
- 24/100
- Enrollment
- 3,657
- Students per teacher
- 15.6:1
- Resource Index
- 38/100
- Enrollment
- 1,508
- Students per teacher
- 12.6:1
- Resource Index
- 35/100
- Enrollment
- 1,447
- Students per teacher
- 14:1
- Resource Index
- 31/100
- Enrollment
- 1,074
- Students per teacher
- 16.8:1
- Resource Index
- 20/100
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of New York, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~662 students)
Next steps
Verify locally before acting on Jhs 78 Roy H Mann's federal record.
- Compare Jhs 78 Roy H Mann against another school. Compare schools
- New York City Geographic District #22's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Jhs 78 Roy H Mann
How many students attend Jhs 78 Roy H Mann?
Jhs 78 Roy H Mann has 662 students enrolled. It is a middle school in Brooklyn, NY.
What is the student-teacher ratio at Jhs 78 Roy H Mann?
The student-teacher ratio at Jhs 78 Roy H Mann is 17:1, which is 44% higher than the New York average of 11.8:1 and 8% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Jhs 78 Roy H Mann?
68.6% of students at Jhs 78 Roy H Mann are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Jhs 78 Roy H Mann?
The largest demographic group at Jhs 78 Roy H Mann is African American at 49.1% of enrollment, in Brooklyn, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.9/100.
What is the Resource Investment Index for Jhs 78 Roy H Mann?
Jhs 78 Roy H Mann has a Resource Investment Index of 24/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Jhs 78 Roy H Mann rank among middle schools in Brooklyn?
By Resource Investment Index, Jhs 78 Roy H Mann ranks #93 of 94 middle schools in Brooklyn, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Brooklyn on the city page.
Is Jhs 78 Roy H Mann a good school?
Jhs 78 Roy H Mann earns 24/100 on the Resource Investment Index, with class sizes larger than 94% of New York schools. It is also more racially and ethnically mixed than most New York 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.
What other schools are in New York City Geographic District #22?
Besides Jhs 78 Roy H Mann, New York City Geographic District #22 also operates James Madison High School (3,983 students), Midwood High School (3,657 students), and Ps 206 Joseph F Lamb (1,508 students). See the New York City Geographic District #22 district page for the complete list.
Related tools
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.