Is 51 Edwin Markham vs Ps 21 Margaret Emery-Elm Park
A head-to-head comparison of two schools in New York, United States, 903 m apart, using official American 2025 data. The better value in each row is highlighted.
Is 51 Edwin Markham
Staten Island · Public middle · Grades 6–8
1,072 students
Ps 21 Margaret Emery-Elm Park
Staten Island · Public elementary · Grades PK–5
380 students
| Measure | Is 51 Edwin Markham Staten Island, New York | Ps 21 Margaret Emery-Elm Park Staten Island, New York |
|---|---|---|
| Success Index (US) | 35 Lower 50% | 41 Lower 50% |
| State rank | #572 of 785 | #1688 of 2,536 |
| National rank | #10855 of 15,369 | #31229 of 50,301 |
| Sector | Public | Public |
| Type | Middle | Elementary |
| Year range | Grades 6–8 | Grades PK–5 |
| Students | 1,072 | 380 |
| Enrollment | 1,072 | 380 |
| Free/reduced-price lunch | 77.9% | 88.7% |
| Students per teacher | 11.5 | 11.2 |
| Reading proficiency | 37% | 42% |
| Math proficiency | 29% | 42% |
| city | Staten Island | Staten Island |
| state | New York | New York |
| Website | – | – |
The verdict
- •Ps 21 Margaret Emery-Elm Park scores higher on the Success Index (US) (41.1 vs 35.0).
- •Ps 21 Margaret Emery-Elm Park does better on math proficiency (42% vs 29%).
- •Ps 21 Margaret Emery-Elm Park does better on reading proficiency (42% vs 37%).
- •Is 51 Edwin Markham does better on community advantage (fewer free/reduced-price lunch) (77.9% vs 88.7%).
- •Ps 21 Margaret Emery-Elm Park does better on students per teacher (11.2 vs 11.5).
- •Is 51 Edwin Markham is the larger school with 1,072 students compared with 380.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Is 51 Edwin Markham better than Ps 21 Margaret Emery-Elm Park?
On the Success Index (US), Ps 21 Margaret Emery-Elm Park ranks higher (41.1 vs 35.0 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Is 51 Edwin Markham and Ps 21 Margaret Emery-Elm Park?
About 903 m in a straight line, between Staten Island and Staten Island in New York.
Which has the better Enrollment?
Is 51 Edwin Markham: 1,072. Ps 21 Margaret Emery-Elm Park: 380. Students enrolled in the latest NCES directory year.
How do Is 51 Edwin Markham and Ps 21 Margaret Emery-Elm Park rank in New York?
Is 51 Edwin Markham is 572nd of 785 and Ps 21 Margaret Emery-Elm Park is 1688th of 2,536 among middle schools in New York on the 2025 Success Index (US).