Brentwood High School
Brentwood, NY · High School · Grades 9-12
Brentwood High School is a high school in Brentwood, NY with 4,641 students enrolled and a 41% proficiency rate. Part of Brentwood Union Free School District. NCES data from the U.S. Department of Education.
Brentwood High School is a high school in Brentwood, NY that enrolls 4,641 students in grades 9-12, putting it among the larger public campuses in the Brentwood Union Free School District. That headcount is above the 1,049-student average for schools in the district.
EDFacts assessment data shows 41% of students reaching grade-level proficiency in combined math and reading, near the middle of the national range. That is 5 points above the 36% average for the Brentwood Union Free School District. Against the 47% New York statewide average, the school sits 6 points lower.
Over the last three reported years the district proficiency rate this school inherits has fallen by about 7 points. As a high school, it reports a 74% adjusted-cohort graduation rate, the share of first-time ninth-graders who earn a regular diploma within four years.
The student-teacher ratio is 14.1 to 1, close to the U.S. average of about 16 to 1. 80% of students qualify for free or reduced-price lunch, indicating a predominantly low-income student body. It receives Title I federal funding, which flags a higher share of low-income students rather than measuring school quality.
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About This School
Brentwood High School is a high school located in Brentwood, New York. The school serves 4,641 students in grades 9-12. The student-to-teacher ratio is 14.1:1.
According to EDFacts assessment data, 41% of students meet grade-level proficiency standards in combined math and reading. The school reports a 74% graduation rate.
80% of students qualify for free or reduced-price lunch, indicating the school serves a predominantly low-income community.
Brentwood High School is part of the Brentwood Union Free School District in New York. The school receives Title I federal funding.
How This School Compares
Brentwood High School has 4,641 students enrolled, making it larger than the average school in Brentwood Union Free School District (1,049 students). Its 41% proficiency rate is 5 percentage points above the district average of 36%. Compared to the New York state average of 47%, the school performs 6 points lower. With a 14.1:1 student-teacher ratio, it offers smaller class sizes than the national average.
Other Schools in Brentwood Union Free School District
Frequently Asked Questions
Brentwood High School has 4,641 students enrolled in grades 9-12. The student-to-teacher ratio is 14.1:1.
According to EDFacts data, 41% of students at Brentwood High School meet grade-level proficiency standards in combined math and reading assessments.
Brentwood High School has a 74% graduation rate, measuring the percentage of students who graduate within four years.
Brentwood High School is part of the Brentwood Union Free School District in Brentwood, New York. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
Source: NCES Common Core of Data, 2026.