P.S./ I.S. 155 Nicholas Herkimer (23K155) is a public school in District 23, Ocean Hill, Brooklyn, serving grades pre-K, K–8. In 2026, 27% of tested students were proficient in reading and 44% were proficient in math (NYC DOE). Enrollment was 285 students in 2025–26 (NYC DOE). The average K–5 class size was 14.8 students in 2025–26 (NYC DOE).
Visit school websiteThe one thing to remember
2026 reading proficiency is 27%, lower than most NYC elementary schools and about typical for those with similar economic need; down 8 points from 2025; reading is down 20 points since 2023, while citywide reading fell 2 points.
Also worth knowing: Math: 44% in 2026, up 8 points from 2025.
99%
of parents trust the principal
99%
trust their child's teachers
95%
satisfied with the education overall
NYC School Survey 2026. 55% of families answered.
Students here gain less than at most schools serving similar students
Impact score: 0.37 · 13th percentile
The DOE compares results with those of students with similar starting points and backgrounds.
View this school's official NYC DOE School Quality SnapshotReading
27%
students scored at Level 3 or 4
122 students tested
35 students tested
87 students tested
Mathematics
44%
students scored at Level 3 or 4
101 students tested
Grade 8 math not reported by the DOE.
Excludes charter schools. Weighted by students tested.
New York changed its grades 3–8 tests in 2023. Compare years from 2023 onward with each other, not with earlier years.
Citywide reading scores fell sharply in 2026; NYC Public Schools is reviewing the results. Source: NYC Public Schools
| Year | Reading | Math |
|---|---|---|
| 2018 | 26% | 23% |
| 2019 | 21% | 25% |
| 2022 | 35% | 20% |
| 2023 | 47% | — |
| 2024 | 40% | 57% |
| 2025 | 35% | 36% |
| 2026 | 27% | 44% |
Proficiency means scoring at Level 3 or above. Test scores are one measure of a school, not the whole experience.
Economic need index: 81%0.3 mi away
Economic need index: 81%0.2 mi away
Economic need index: >95%0.5 mi away
Economic need index: >95%0.4 mi away
Economic need index: 79%0.5 mi away
Economic need index: 89%0.2 mi away
Economic need index: >95%0.6 mi away
Economic need index: 90%
Economic need index: >95%0.5 mi away
Economic need index: 81%0.3 mi away
Economic need index: 81%0.2 mi away
Economic need index: >95%0.4 mi away
Economic need index: 79%0.5 mi away
Economic need index: >95%0.6 mi away
Economic need index: >95%0.5 mi away
Economic need index: 90%
Economic need index: 89%0.2 mi away
Economic need index: >95%0.5 mi away
| Measure | P.S./ I.S. 155 Nicholas Herkimer | Brooklyn Landmark Elementary School |
|---|---|---|
| 2026 reading proficient | 27% (-8 points vs 2025) | 64% (-16 points vs 2025) |
| 2026 math proficient | 44% (+8 points vs 2025) | 69% (-7 points vs 2025) |
| Average K–5 class size (2025–26) | 14.8 | 21.0 |
| Enrollment (2025–26) | 285 | 358 |
| Student–teacher ratio (2025–26) | 8.2 | 11.5 |
| Family satisfaction (2026) | 95% | 93% |
| Principal trust (2026) | 99% | 99% |
| Teacher trust (2026) | 99% | 97% |
| Leadership (2026) | 99% | 99% |
| Distance between schools | 0.2 mi | |
P.S./ I.S. 155 Nicholas Herkimer has lower reading proficiency than Brooklyn Landmark Elementary School (27% vs 64%) and lower math proficiency (44% vs 69%); 2026 reading is about typical for NYC elementary schools with similar economic need; 2026 math is about typical for NYC elementary schools with similar economic need.
Enrollment
285 students
pre-K, K–8 · down 41 over five years
NYC DOE · 2025–26
Class size
14.8
children in the average K–5 class; about 8.2 students per teacher (2025–26)
NYC DOE · 2025–26
English learners
23%
was 28% in 2024–25
NYC DOE · 2025–26
Economic need
88% of students live in poverty (2025–26)
Economic need index: 90% — the measure we use to compare similar schools.
NYC DOE · 2025–26
Special education
26%
of students here are in special education
NYC DOE · 2025–26
Student body: 1% White, 62% Hispanic, 2% Asian, 32% Black, 0% multiracial, 50% female, 50% male.
Economic need index: 90% — the measure we use to compare similar schools. It combines measures of students’ economic circumstances; it is not a measure of school quality.
NYC DOE · 2026 survey
NYC DOE · 2024–25
Admissions for NYC public schools go through MySchools. This school has no attendance zone; admission is through MySchools.
1355 HERKIMER STREET
Source: NYC DOE / NYSED, 2026 · School information · View this school's official NYC DOE School Quality Snapshot
Admissions for NYC public schools go through MySchools.