GRUNDY AVENUE SCHOOL

As a medium-sized elementary campus in HOLBROOK, New York, GRUNDY AVENUE SCHOOL educates 452 students from grades K through 5, one of the schools within SACHEM CENTRAL SCHOOL DISTRICT.

Across the 15 schools in SACHEM CENTRAL SCHOOL DISTRICT (11,556 students total), GRUNDY AVENUE SCHOOL accounts for its share of the district's footprint.

On the student-mix side, GRUNDY AVENUE SCHOOL shows that White students make up the majority at 67%; the rest comes out to 22% Hispanic, 4% Asian, 4% multiracial. That mix tracks the wider county fairly closely.

On the resource side, Staff filings list 36 full-time-equivalent teachers, which works out to roughly 12.5:1 students per teacher. The state averages about 12.8:1, putting this campus right in line with peers. Roughly 28% of students at GRUNDY AVENUE SCHOOL qualify for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. Set against Suffolk County (around 39%), the school's rate is meaningfully below typical.

Adjusting for the school's free-and-reduced-lunch share, On a poverty-adjusted basis, GRUNDY AVENUE SCHOOL sits in the bottom 10% statewide. Predicted proficiency from the FRL regression is roughly 64.7%; actual is 38.5%, a gap of -26.3 points.

Across the wider county, community-level numbers for Suffolk County indicate the typical household earns roughly $130,686 per year, 40% of adults hold a bachelor's degree or higher, and roughly 4% of residents live below the federal poverty line. GRUNDY AVENUE SCHOOL is one of 343 public schools in Suffolk County (combined enrollment of about 222,439 students).

The closest other public school is MERRIMAC SCHOOL, roughly 0.4 miles away. Within five miles, there are 8 other public schools. Among the 9 schools in that immediate cluster with test data (this one included), GRUNDY AVENUE SCHOOL ranks 9th on composite proficiency, beneath the local average of 57.7%.

Geographically, the school is in a residential area.

Trend over the last 7 years. Looking back 7 years, enrollment at GRUNDY AVENUE SCHOOL has decreased 13%, going from 522 students in 2018 to 452 in 2025. Over the same period, the White share contracted from 76% to 67%. The student-to-teacher ratio narrowed from 14.5:1 in 2018 to 12.5:1 today.

On allk12, the feed for GRUNDY AVENUE SCHOOL typically covers pickup logistics, teacher feedback, and after-school programs. Parents, students, alumni, and staff are welcome to weigh in.