Stony Brook School

Stony Brook School operates as a tight-knit primary school in Branchburg, New Jersey, overseen by Branchburg Township School District. Current enrollment sits at 310 students spanning grades 4 through 5. Enrollment runs roughly 23% leaner than the state mean of about 405.

Branchburg Township School District comprises 3 schools with combined enrollment of 1,385 students; Stony Brook School is among them.

On the student-mix side, Stony Brook School reports that 61% of the student body identifies as White. Other groups include 16% Asian, 13% Hispanic, 6% multiracial, 4% Black. That is meaningfully more White than the county at large, where the share is closer to 52%.

In terms of school funding signals, The school lists 39 full-time-equivalent teachers, for a student-teacher ratio near 8.0:1. The state averages around 11.4:1, so this campus is tighter than the state norm typical. An estimated 10% of students are eligible for free or reduced-price lunch, often used as a Title I proxy. Set against Somerset County (around 28%), the school's rate is meaningfully below typical.

On a residual basis (actual vs predicted given the student mix), Stony Brook School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 60.7%; this one delivers 59.7%.

In the broader community, census data for Somerset County shows median household income runs about $140,374, roughly 58% of adults have completed at least a four-year degree, and roughly 4% of residents live below the federal poverty line. Stony Brook School is one of 84 public schools in Somerset County (combined enrollment of about 51,276 students).

Nearest neighbor: Branchburg Central Middle School, around 0.8 miles off. Counting just inside five miles, 8 other public schools cluster around Stony Brook School. Ranking that nearby cluster on reported proficiency puts Stony Brook School at 6th of 9; the average score across the group is 64.3%.

The school occupies an outer-ring site.

Trend over the last 7 years. Over the past 7-year window, the student count edged down 9%: 342 students in 2018 compared to 310 in 2025. White enrollment moved from 76% to 61% across the same window. The student-to-teacher ratio narrowed from 10.0:1 in 2018 to 8.0:1 today.

On the community side, members of the Stony Brook School community share and discuss science fair prep, picture-day reminders, and bus-route questions. Contributors range from current parents to recent graduates and teachers.