Total enrollment
1,180
-48 (-4%) vs SY 2017-18
2 schools in Stony Brook
New York · Public K-12
Within Stony Brook, New York, 2 public K-12 schools teach roughly 1,180 students, an average of 590 per campus.
7-year change in Stony Brook
SY 2017-18 vs SY 2024-25School count
2
0 (0%) vs SY 2017-18
% Hispanic
14%
was 6%
% Black
2%
was 1%
% Asian
21%
was 13%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
| Name | Level | Grades | Enrollment |
|---|---|---|---|
| ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL | Middle | 07-09 | 655 |
| WILLIAM SIDNEY MOUNT ELEMENTARY SCHOOL | Elementary | PK-06 | 525 |
About Stony Brook
Stony Brook, New York is home to 2 public schools, with combined enrollment of approximately 1,180 students. By school count, it is a low-population city.
On the level-by-level breakdown, the city covers 1 elementary, and 1 middle.
Average school size in Stony Brook is around 590 students, 14% noticeably above the New York average of about 519.
Five-year track record. Total public-school enrollment in Stony Brook has declined 4% since SY 2017-18, moving from about 1,228 students to 1,180. On the demographic side, Asian enrollment moved from 13% to 21% over the same window.
In the discussion threads here, the community for Stony Brook discusses school events, board meetings, and seasonal calendars. Anyone with firsthand knowledge of these schools is welcome to weigh in.