Brentwood High School, Brentwood NY

Original Research by School Decision on Brentwood High School

Brentwood High School is a large public high school serving grades 9 through 12 in a diverse, densely populated suburban community on central Long Island. The school enrolls a substantial student population, with the student body being predominantly Hispanic, and a very high share of students qualifying for free or reduced-price lunch.

The school is located at 2 6th Avenue in Brentwood's central grid, near bus stops and within reach of the Brentwood LIRR station on the Ronkonkoma Branch, which was recently rebuilt and connects to multiple local transit routes. This positions the school accessibly for students and families relying on public transportation in a car-oriented community. Brentwood itself is an affordable suburban area by Long Island standards, with median home prices that are comparatively modest relative to neighboring communities in Suffolk County. The housing stock is primarily single-family homes in traditional styles, and the area is seeing growth through large adaptive-reuse housing projects such as the Joseph's Village affordable-housing conversion, which will add substantial units to the community by 2028.

State testing data for the school was not available, nor were graduation rates, chronic absenteeism rates, or other academic metrics that would typically characterize performance. This absence of reported data limits what can be said directly about academic attainment at the school. A parent may want to reach out to the school or district directly to understand current proficiency levels, graduation outcomes, and any state assessments the school participates in.

The district has invested in college-readiness and postsecondary options through its Graduation PLUS+ initiative, which includes dual-enrollment opportunities such as a new research course with Syracuse University for juniors and seniors, allowing students to earn college credit before graduation. The district also participates in the federal Community Eligibility Provision, providing breakfast and lunch at no cost to all enrolled students, removing that expense for families regardless of income level. For the 2026-27 school year, voters approved a budget that includes a capital transfer for classroom expansion at four elementary schools and investments in air conditioning, security systems, and technology, indicating ongoing facility improvements across the district. The district has also held property tax increases relatively modest in recent years, with a period of flat levies followed by small annual increases, a consideration for families weighing the cost of living in the community.

The broader Brentwood community is anchored by the Brentwood Public Library in the central grid, Ross Memorial Park and Brentwood State Park for recreation, and employment anchored by health care, retail, and manufacturing sectors, with institutional employers including Suffolk County Community College's Grant Campus and Pilgrim Psychiatric Center. The built environment is car-oriented with limited walkability, dominated by strip retail such as the Marketplace at Brentwood, though an older institutional core retains historic buildings near Third Avenue. This is a working- and middle-income suburban setting with a predominantly Hispanic population and high economic diversity, offering families a lower-cost housing alternative to more expensive Long Island communities while remaining connected to regional job centers and transit.

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Academic performance

How students graduate and prepare for what comes next.

Graduation rate (ACGR)

77.0%Cohort of 1,532 students · Class of 2021

How this school compares to all schools in this state

Each dot is one school’s SY 2020-21 graduation rate, binned by integer rate. Taller columns mean more schools at that rate. This school is highlighted.

1,253 schools plotted. 14 additional schools' rates are federally suppressed and not shown. Data: EDFacts SY 2020-21.

Advanced Placement & IB

21 subjects offered · 2023-24

Each card is one AP or IB subject. The headline number is the share of students scoring 3 or higher on the exam — the threshold for college credit at most universities. The bar below each rate shows the underlying distribution across performance levels.

Score:12· no credit345· extremely well qualified

Math and Computer Science

Calculus AB

57 tested

54.4%

scored 3 or higher

Calculus BC

32 tested

46.9%

scored 3 or higher

Computer Science Principles

66 tested · Grade 10

71.2%

scored 3 or higher

Statistics

32 tested

37.5%

scored 3 or higher

Sciences

Biology

71 tested · HS

80.3%

scored 3 or higher

Chemistry

17 tested

76.5%

scored 3 or higher

Environmental Science

26 tested · Grade 10

61.5%

scored 3 or higher

Physics 1

25 tested

52.0%

scored 3 or higher

Physics 2

11 tested

72.7%

scored 3 or higher

English

Research

4 tested

0.0%

scored 3 or higher

Seminar

29 tested · Grade 10

96.6%

scored 3 or higher

History and Social Sciences

Human Geography

28 tested · Grade 10, HS

60.7%

scored 3 or higher

U.S. History

36 tested

94.4%

scored 3 or higher

World Languages and Cultures

Spanish Language and Culture

66 tested

98.5%

scored 3 or higher

Spanish Literature and Culture

9 tested

77.8%

scored 3 or higher

Arts

Music Theory

22 tested

36.4%

scored 3 or higher

Other

Language and Comp

66 tested · HS

71.2%

scored 3 or higher

Literature and Comp

24 tested

83.3%

scored 3 or higher

Studio Art 2d Design

5 tested

0.0%

scored 3 or higher

U S Government and Politics

35 tested

100.0%

scored 3 or higher

World History

38 tested · Grade 10

100.0%

scored 3 or higher

New York Regents Exams

4 courses reported · 2024-25

End-of-course exams required for a New York Regents diploma. Each row shows the cohort size and the share of students scoring at the proficient level or higher.

Course	Students tested	% proficient
Ela	1,729	68.0%
Social Studies	1,587	77.0%
Math	1,280	39.0%
Science	82	89.0%

Graduation rate (ACGR) reflects the federally published Adjusted Cohort Graduation Rate for the most recent year available. We refresh this data annually at the close of each academic year in June. The federal source publishes a banded rate (for example, "90-94%") instead of an exact number for cohorts small enough to risk identifying individual students. The state distribution chart, where shown, plots every school in the state with a published rate or band; schools whose rate is federally suppressed are excluded. Where the federal source publishes a band rather than an exact rate, the school is placed within its band using a stable, ID-derived offset, so its position is consistent across visits.