Enrollment
378
Middle
DISTRICT 413 · STATE 531
SCHOOL COMMUNITY·NEW YORK CITY GEOGRAPHIC DISTRICT # 2·NCES 360007704408
MS 255 SALK SCHOOL OF SCIENCE
320 E 20TH ST, NEW YORK, NY 10003 · (212) 614-8785 · New York County
GRADES 06–08MIDDLE11-CITYREGULAR SCHOOL378 STUDENTS
A+
allk12 Grade
Scored higher than 99% of New York public middle schools
- A+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- A+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded New York public middle schools
Student : Teacher
17.4:1
22 FTE teachers
DISTRICT 12.2:1 · STATE 10.3:1
Free / Reduced Lunch
20%
74 students
DISTRICT 62% · STATE 58%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 6 | 135 | 36% |
| Grade 7 | 122 | 32% |
| Grade 8 | 121 | 32% |
Student demographics
68%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 75% · STATE 72% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
QUIET COMMUNITY
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START A DISCUSSIONTest scores
NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)English Language Arts
89.0%
NY avg 58.3% . +1.0pp since 2023
Math
99.0%
NY avg 57.4% . +3.1pp since 2023
What this means: On the NYS Assessments, New York's statewide test, about 89 of every 100 students at this school read and write at grade level and about 99 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are up about 1 points since 2023, while math scores are up about 3 points.
NYS Assessments results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 89.0% | 99.0% |
| 2023-24 | 88.0% | 95.9% |
% Proficient (Level 3 + Level 4), all students and all tested grades.
Source: NYS Assessments. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
OUTPERFORMING
Top 10% of NY schools after controlling for student poverty
Actual proficiency
92.6%
composite math + reading, all grades
Predicted
67.8%
based on NY schools with similar FRL share
Beats by
+24.8pp
above demographic expectation
What this means: About 93% of students here test proficient in math and reading, well above the roughly 68% typical for New York schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 25 points, placing it in New York's top 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like MS 255 SALK SCHOOL OF SCIENCE
MS 255 SALK SCHOOL OF SCIENCE's state test result (92.6% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| MS 255 SALK SCHOOL OF SCIENCE this school | 378 | 19.6% | 92.6% |
| EAST SIDE MIDDLE SCHOOL NEW YORK | 424 | 25.5% | 85.5% |
| MANHASSET MIDDLE SCHOOL MANHASSET | 541 | 12.8% | 90.6% |
| IROQUOIS MIDDLE SCHOOL SCHENECTADY | 614 | 18.9% | 72.9% |
| GREAT NECK NORTH MIDDLE SCHOOL GREAT NECK | 728 | 24.7% | 80.1% |
| ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL STONY BROOK | 655 | 21.2% | 71.5% |
Matched among New York middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where MS 255 SALK SCHOOL OF SCIENCE ranks
Among middle schools| Measure | This school | In New York | In New York County |
|---|---|---|---|
| State test proficiency ranked highest first | 92.6% | #1 of 766 | #1 of 39 |
| Math proficiency ranked highest first | 99.0% | #53 of 768 ▲ 19 | #1 of 39 ▲ 1 |
| Reading proficiency ranked highest first | 89.0% | #8 of 768 ▼ 6 | #2 of 39 ▼ 1 |
| Enrollment ranked largest first | 378 | #467 of 796 | #7 of 42 |
| Students per teacher ranked fewest first | 17.4:1 | #679 of 683 | #24 of 24 |
| Diversity index ranked most diverse first | 67.7% | #91 of 688 | #9 of 24 |
| Free and reduced lunch ranked highest share first | 19.6% | #699 of 773 | #39 of 39 |
| Enrollment change since 2017-18 ranked steepest decline first | -2.3% | #484 of 524 | #23 of 23 |
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
378
+22 (+6%) vs 2020
-3% since 2010-11, when it was 388
Student : Teacher
17.4:1
was 14.2:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 378 | 21.7 | 17.4:1 | 20% (74) |
| 2023-24 | 369 | 25.9 | 14.3:1 | 25% (91) |
| 2022-23 | 364 | 25.3 | 14.4:1 | 22% (79) |
| 2020-21 | 356 | 25 | 14.2:1 | 17% (59) |
| 2017-18 | 387 | 24.4 | 15.9:1 | 11% (41) |
| 2015-16 | 374 | 21 | 17.8:1 | 11% (41) |
| 2010-11 | 388 | 25 | 15.5:1 | 19% (73) |
Source: NCES Common Core of Data. Rows are the federal collections on file for MS 255 SALK SCHOOL OF SCIENCE.
About MS 255 SALK SCHOOL OF SCIENCE
In NEW YORK, New York, part of New York County, MS 255 SALK SCHOOL OF SCIENCE is a middle-grades school. It offers grades 6 through 8 and has 378 students enrolled. Middle schools in New York have about 531 students on average; enrollment here is 29% lower.
MS 255 SALK SCHOOL OF SCIENCE falls under NEW YORK CITY GEOGRAPHIC DISTRICT # 2, which has 119 schools enrolling 54,599 students.
About 47% of students at MS 255 SALK SCHOOL OF SCIENCE are White, the largest single group. Other reported shares: 28% Asian, 12% Hispanic, 11% multiracial, and 2% Black. Among New York County residents, the White share is about 48%. On a 0 to 100 scale, the school's diversity index is 68, compared with 70 nationally.
The student-to-teacher ratio is 17.4:1. The school has 21.7 full-time-equivalent teachers. The school's 17.4:1 compares with an average of 10.3:1 for middle schools in New York. Student poverty is often measured by lunch eligibility; at MS 255 SALK SCHOOL OF SCIENCE, 20% qualify for free or reduced-price lunch. Compared with the 70% average for public schools in New York County, the school's rate is lower.
MS 255 SALK SCHOOL OF SCIENCE holds an A+ allk12 Grade, placing it above 99% of New York public middle schools.
On BeatsExpectations, which compares test results with what a school's student poverty level would predict, MS 255 SALK SCHOOL OF SCIENCE ranks in the top 10% in New York. Its average proficiency rate across its state test results is 92.6%, against a prediction of 67.8%.
For New York County, Census Bureau data show the median household earns about $103,931 a year, roughly 64% of adults have a four-year degree or more, and about 13% of residents live below the federal poverty line. Counting MS 255 SALK SCHOOL OF SCIENCE, New York County has 358 public schools.
PS 40 AUGUSTUS SAINT-GAUDENS is less than a tenth of a mile from MS 255 SALK SCHOOL OF SCIENCE, the shortest distance to any other public school. Counting only straight-line distance, at least 8 other public schools are within five miles. MS 255 SALK SCHOOL OF SCIENCE places 1st of 7 on proficiency among the closest schools that report scores.
The school's setting, by NCES definition, is City: Large: inside a principal city with a population of 250,000 or more.
Between 2020-21 and 2024-25, MS 255 SALK SCHOOL OF SCIENCE had a net gain of 22 students, or 6%. Its ratio of students to teachers was 14.2:1 in 2020-21, and 17.4:1 in 2024-25.
Parents, students, and staff can share information on special education services, counseling, and support programs here. Parents, students, alumni, and staff are welcome to post.
New York County at a glance
View full county profilePopulation
1,629,477
Census ACS
Median income
$103,931
Household, ACS
Bachelor's+
64%
Adults 25+
Poverty rate
13%
Below federal line
Schools in county
358
152,104 students
Quick facts
Related schools
Other schools in NEW YORK CITY GEOGRAPHIC DISTRICT # 2
- STUYVESANT HIGH SCHOOLHigh · 3,261 students
- HIGH SCHOOL FOR HEALTH PROFESSIONS & HUMAN SERVICESHigh · 1,728 students
- ART AND DESIGN HIGH SCHOOLHigh · 1,485 students
- HIGH SCHOOL OF FASHION INDUSTRIES (THE)High · 1,455 students
- JHS 104 SIMON BARUCHMiddle · 1,023 students
- HIGH SCHOOL FOR ENVIRONMENTAL STUDIESHigh · 1,007 students
Other schools in NEW YORK
- STUYVESANT HIGH SCHOOLHigh · 3,261 students
- FIORELLO H LAGUARDIA HIGH SCHOOLHigh · 2,251 students
- HIGH SCHOOL FOR HEALTH PROFESSIONS & HUMAN SERVICESHigh · 1,728 students
- MANHATTAN CENTER FOR SCIENCE & MATHEMATICSHigh · 1,657 students
- NEW EXPLORATIONS INTO SCIENCETECH AND MATH HIGH SCHOOLCombined · 1,620 students
- SUCCESS ACADEMY CHARTER SCHOOL-HARLEM 1Combined · 1,520 students
Nearby schools
- PS 40 AUGUSTUS SAINT-GAUDENS0.0 mi · 538
- JHS 104 SIMON BARUCH0.0 mi · 1,023
- AMERICAN SIGN LANGUAGE & ENGLISH SECONDARY SCHOOL0.2 mi · 147
- 47 AMERICAN SIGN LANGUAGE AND ENGLISH LOWER SCHOOL (THE)0.2 mi · 172
- INSTITUTE FOR COLLABORATIVE EDUCATION0.2 mi · 466
- PS 2260.2 mi · 274
Frequently asked questions
About MS 255 SALK SCHOOL OF SCIENCEHow many students attend MS 255 SALK SCHOOL OF SCIENCE?
MS 255 SALK SCHOOL OF SCIENCE enrolls approximately 378 students in grades 06-08.
What age range does MS 255 SALK SCHOOL OF SCIENCE serve?
MS 255 SALK SCHOOL OF SCIENCE serves students from grade 06 through grade 08.
How many students per teacher at MS 255 SALK SCHOOL OF SCIENCE?
Approximately 17.4:1 students per teacher at MS 255 SALK SCHOOL OF SCIENCE.
What is the racial breakdown of students at MS 255 SALK SCHOOL OF SCIENCE?
At MS 255 SALK SCHOOL OF SCIENCE, the student body is approximately 47% White, 12% Hispanic, 2% Black, 28% Asian, 11% Two or more.
Is MS 255 SALK SCHOOL OF SCIENCE public or private?
MS 255 SALK SCHOOL OF SCIENCE is a public K-12 school, overseen by NEW YORK CITY GEOGRAPHIC DISTRICT # 2.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.