Enrollment
378
New York · 2024-25 NCES data
Middle school (grades 6-8) · New York, NY
Ms 255 Salk School of Science
Federal NCES profile for Ms 255 Salk School of Science, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 360007704408
👥 S:T ratio 40
🌟 Gifted program 30
📋 Attendance 72
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ms 255 Salk School of Science earns 47/100 on the Resource Investment Index, with class sizes larger than 87% of New York schools. It is also more racially and ethnically mixed than most New York schools.
- #8 of 41
- middle schools in New York · Resource Index
- 47
- Resource Index · Typical
- 15.1:1
- large classes for New York
- 20.1%
- free-lunch eligible
Ms 255 Salk School of Science has class sizes larger than 87% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Ms 255 Salk School of Science ranks #8 of 41 middle schools in New York, NY.
School address
District: New York City Geographic District # 2 · New York
NCES ID 360007704408 Verify on NCES CCD record →
Teachers (FTE)
25.0
Federal CCD staff survey
Students per teacher
15.1:1
vs 11.8:1 New York avg
+28% vs state
Free-lunch eligible
20.1%
vs 56.2% New York avg
-64% vs state
Student-teacher ratio in context
How Ms 255 Salk School of Science compares with New York and U.S. medians
What stands out at Ms 255 Salk School of Science
Ms 255 Salk School of Science is a mid-sized middle school in New York, New York, enrolling 378 students.
Class loads run heavy: 15.1:1 is larger than about 87% of New York schools and 28% above the 11.8:1 state mean, so each teacher carries more students than is typical.
Comparatively few students face economic hardship here, 20.1% free-meal eligibility runs 64% below the New York average.
With 378 students, its enrollment sits close to the New York median campus size.
Its Resource Investment Index outscores 91% of the 4,801 New York schools with a score on record, a top-tier result on this measure.
Among 610 similarly sized, similarly resourced-need New York schools statewide, it ranks #60, a top-tier result once campus size and economic need are matched.
Its student body is led by White (47%) and Asian (28%), more mixed than most schools in the state (diversity index 68/100).
11.4% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
New York City Geographic District # 2 also operates Stuyvesant High School (3,261 students) and High School for Health Professions & Human Services (1,728 students) alongside Ms 255 Salk School of Science.
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 Ms 255 Salk School of Science compares
Ms 255 Salk School of Science 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 | 15.1:1 | ▲ 28% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 20.1% | ▼ 64% | 56.2% | 51.7% |
| Enrollment | 378 | top 59% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.1:1
Leaner classes than 46% of US schools, a middle-of-the-pack class size.
378
Bigger than 44% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
20.1%
free-lunch eligible
- 64% below the New York average of 56.2%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
15.1:1
students per teacher
- 28% above state mean
Top 87% in New York - lower ratio than 13% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
11.4%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
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
White 46.8%
Asian 27.5%
Hispanic or Latino 11.9%
Two or More 11.4%
African American 2.1%
American Indian / Alaska Native 0.3%
Largest group: White at 46.8% of enrollment.
Student-body diversity index 67.8/100
Simpson diversity index - at 67.8, Ms 255 Salk School of Science is more mixed than the New York school average of 45.5.
How Ms 255 Salk School of Science Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Stuyvesant High School | Larger | Higher economic need | Higher S:T ratio |
| High School for Health Professions & Human Services | Larger | Higher economic need | Higher S:T ratio |
| Art and Design High School | Larger | Higher economic need | Similar S:T ratio |
| High School of Fashion Industries (the) | Larger | Higher economic need | Lower S:T ratio |
| Jhs 104 Simon Baruch | Larger | Higher economic need | Higher S:T ratio |
Comparisons are relative to Ms 255 Salk School of Science's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,261
- Students per teacher
- 20.1:1
- Resource Index
- 46/100
- Enrollment
- 1,728
- Students per teacher
- 16.9:1
- Resource Index
- 16/100
- Enrollment
- 1,485
- Students per teacher
- 15:1
- Resource Index
- 20/100
- Enrollment
- 1,455
- Students per teacher
- 12.8:1
- Resource Index
- 49/100
- Enrollment
- 1,023
- Students per teacher
- 17.6:1
- Resource Index
- 42/100
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 (~378 students)
Next steps
Verify locally before acting on Ms 255 Salk School of Science's federal record.
- Compare Ms 255 Salk School of Science against another school. Compare schools
- New York City Geographic District # 2'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 Ms 255 Salk School of Science
How many students attend Ms 255 Salk School of Science?
Ms 255 Salk School of Science has 378 students enrolled. It is a middle school in New York, NY.
What is the student-teacher ratio at Ms 255 Salk School of Science?
The student-teacher ratio at Ms 255 Salk School of Science is 15.1:1, which is 28% higher than the New York average of 11.8:1 and 4% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Ms 255 Salk School of Science?
20.1% of students at Ms 255 Salk School of Science are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Ms 255 Salk School of Science?
The largest demographic group at Ms 255 Salk School of Science is White at 46.8% of enrollment, in New York, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.8/100.
What is the Resource Investment Index for Ms 255 Salk School of Science?
Ms 255 Salk School of Science has a Resource Investment Index of 47/100 (typical 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 Ms 255 Salk School of Science rank among middle schools in New York?
By Resource Investment Index, Ms 255 Salk School of Science ranks #8 of 41 middle schools in New York, 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 New York on the city page.
Is Ms 255 Salk School of Science a good school?
Ms 255 Salk School of Science earns 47/100 on the Resource Investment Index, with class sizes larger than 87% 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 # 2?
Besides Ms 255 Salk School of Science, New York City Geographic District # 2 also operates Stuyvesant High School (3,261 students), High School for Health Professions & Human Services (1,728 students), and Art and Design High School (1,485 students). See the New York City Geographic District # 2 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.