ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL

ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL operates as a reasonably sized junior high in STONY BROOK, New York, run under THREE VILLAGE CENTRAL SCHOOL DISTRICT. Current enrollment sits at 655 students spanning grades 7 through 9. Enrollment runs roughly 23% larger than the state mean of about 531.

Across the 8 schools in THREE VILLAGE CENTRAL SCHOOL DISTRICT (5,629 students total), ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL accounts for its share of the district's footprint.

Looking at the student body, ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL lists that the largest single group is White, at 59% of enrollment. Beyond that, the school lists 19% Asian, 15% Hispanic, 5% multiracial, 3% Black.

On the resource side, Staff filings list 65 full-time-equivalent teachers, which works out to roughly 10.1:1 students per teacher. The state averages about 10.3:1, putting this campus right in line with peers. Roughly 21% of students at ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. Set against Suffolk County (around 39%), the school's rate is noticeably below typical.

On a residual basis (actual vs predicted given the student mix), ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL tracks the demographic baseline. The model predicts 67.2% given the school's FRL share; actual proficiency is 71.5%.

Around the school, ACS estimates for Suffolk County put the typical household earns roughly $130,686 per year, about 40% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 4%. ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL is one of 343 public schools in Suffolk County (combined enrollment of about 222,439 students).

WILLIAM SIDNEY MOUNT ELEMENTARY SCHOOL is the nearest neighboring public school, about 1.2 miles from this campus. Counting just inside five miles, 8 other public schools cluster around ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL. Ranking that nearby cluster on reported proficiency puts ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL at 3rd of 9; the average score across the group is 57.7%.

Geographically, the school is in a commuter-belt area.

Trend over the last 7 years. ROBERT CUSHMAN MURPHY JUNIOR HIGH SCHOOL's enrollment has decreased 13% since 2018, when it stood at 752 (now 655). Over the same period, the White share contracted from 80% to 59%. Class-load math has tightened: from 12.8:1 in 2018 to 10.1:1 in 2025.

On the community side, the page collects discussion, questions, and updates around fundraisers, lost-and-found posts, and report-card season. Anyone with firsthand experience at this school can post or comment.