The Kathleen Grimm School for Leadership and Sustainability (31R062) is a public school in District 31, Charleston-Richmond Valley-Tottenville, Staten Island, serving grades pre-K, K–5. In 2026, 71% of tested students were proficient in reading and 82% were proficient in math (NYC DOE). Enrollment was 417 students in 2025–26 (NYC DOE). The average K–5 class size was 27.2 students in 2025–26 (NYC DOE).
Visit school websiteThe one thing to remember
2026 reading proficiency is 71%, higher than most NYC elementary schools and about typical for those with similar economic need; down 10 points from 2025.
Also worth knowing: Trust in principal (2026) is 83%, lower than most elementary schools in the district and citywide.
83%
of parents trust the principal
96%
trust their child's teachers
96%
satisfied with the education overall
NYC School Survey 2026. 41% of families answered — treat as a partial picture.
Students here gain about as much as at other schools serving similar students
Impact score: 0.54 · 60th 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
71%
students scored at Level 3 or 4
208 students tested
46 students tested
162 students tested
Mathematics
82%
students scored at Level 3 or 4
209 students tested
46 students tested
163 students tested
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 |
|---|---|---|
| 2019 | 75% | 62% |
| 2022 | 77% | 58% |
| 2023 | 72% | 74% |
| 2024 | 66% | 82% |
| 2025 | 81% | 85% |
| 2026 | 71% | 82% |
Proficiency means scoring at Level 3 or above. Test scores are one measure of a school, not the whole experience.
Economic need index: 25%1.8 mi away
Economic need index: 31%0.2 mi away
Economic need index: 35%
Economic need index: 36%1.5 mi away
Economic need index: 38%2.6 mi away
Economic need index: 33%1.8 mi away
Economic need index: 44%1.4 mi away
Economic need index: 42%2.7 mi away
Economic need index: 42%2.3 mi away
Economic need index: 25%1.8 mi away
Economic need index: 36%1.5 mi away
Economic need index: 35%
Economic need index: 31%0.2 mi away
Economic need index: 44%1.4 mi away
Economic need index: 42%2.7 mi away
Economic need index: 42%2.3 mi away
Economic need index: 33%1.8 mi away
Economic need index: 38%2.6 mi away
| Measure | The Kathleen Grimm School for Leadership and Sustainability | P.S. 56 The Louis Desario School |
|---|---|---|
| 2026 reading proficient | 71% (-10 points vs 2025) | 72% (-5 points vs 2025) |
| 2026 math proficient | 82% (-3 points vs 2025) | 80% (+4 points vs 2025) |
| Average K–5 class size (2025–26) | 27.2 | 20.1 |
| Enrollment (2025–26) | 417 | 645 |
| Student–teacher ratio (2025–26) | 15.4 | 10.5 |
| Family satisfaction (2026) | 96% | 95% |
| Principal trust (2026) | 83% | 97% |
| Teacher trust (2026) | 96% | 96% |
| Leadership (2026) | 87% | 96% |
| Distance between schools | 0.2 mi | |
The Kathleen Grimm School for Leadership and Sustainability has lower trust in principal (2026) than P.S. 56 The Louis Desario School (83% vs 97%).
Enrollment
417 students
pre-K, K–5 · up 19 over five years
NYC DOE · 2025–26
Class size
27.2
children in the average K–5 class; about 15.4 students per teacher (2025–26)
NYC DOE · 2025–26
English learners
4%
was 4% in 2024–25
NYC DOE · 2025–26
Economic need
40% of students live in poverty (2025–26)
Economic need index: 35% — the measure we use to compare similar schools.
NYC DOE · 2025–26
Special education
27%
of students here are in special education
NYC DOE · 2025–26
Student body: 75% White, 11% Hispanic, 12% Asian, 1% Black, 1% multiracial, 51% female, 49% male.
Economic need index: 35% — 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. Check the attendance zone shown above; zones can change and do not guarantee a seat.
644 Bloomingdale Rd, Staten Island, NY 10309, USA
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.