Sayville High School, West Sayville NY

Original Research by School Decision on Sayville High School

Sayville High School is a public school serving grades 9-12 in West Sayville on Long Island's South Shore. It enrolls a student body of roughly that size for a suburban high school, with enrollment spread evenly across the four grade levels. The student population is predominantly white, with a smaller mix of Hispanic, Asian, and other students represented. About one in eight students qualifies for free or reduced-price lunch, indicating a generally middle-to-upper-middle-income school community that mirrors the surrounding area's housing market.

The housing context around the school reflects a built-out, stable suburb. Homes in the area list at a median price in the mid-range for Long Island, with recent years showing modest appreciation. The real estate market is moderately supplied, with fewer pending sales than a year prior, and days on market suggest a balanced buyer-seller environment. Monthly housing costs, whether mortgage or rent, run considerably higher than national averages, consistent with Long Island's positioning. The broader economic picture shows moderate unemployment and median household incomes above national levels, supporting the school's relatively low free-lunch rate.

State assessment data was not available for this school. Because Sayville High School serves only grades 9-12, it does not administer the state testing program that applies to grades 3-8, so no proficiency results appear in the state record. The school's performance cannot be characterized from testing data provided here. A parent interested in academic standing should reach out to the school directly or consult other sources such as school-published data, student transcripts, or parent testimonials.

Sayville Union Free School District, the school's parent district, has launched notable programmatic additions in recent years. The district opened its first-ever Universal Pre-K program and is expanding it across elementary buildings, funded in the 2023-2024 budget alongside a broader five-year expansion plan adding STEM, arts, and world language instruction at multiple grade levels. The 2025-2026 budget was approved by voters and brought a modest overall spending decrease from the prior year while keeping the tax levy increase below the district's allowable cap, despite rising insurance and BOCES costs. These shifts suggest a district focused on expanding early childhood and broadening academic offerings while managing taxpayer burden.

West Sayville itself is a small residential hamlet centered on quiet, tree-lined streets rather than a downtown. Much of daily commercial life happens in nearby Sayville's bustling Main Street, a short distance away, which hosts shops, restaurants, and the LIRR station serving Manhattan commuters. The hamlet is anchored by waterfront parks, the Long Island Maritime Museum, and recreational facilities overlooking Great South Bay. Recent residential development has skewed toward 55-and-over rental communities rather than large new subdivisions. The most significant land-use change is the conversion of a large former university campus into Harrow International School New York, a new boarding and day school opening in 2025 on the waterfront.

Among districts in Suffolk County, Sayville High's overall proficiency index on state-tested subjects and grades falls in the bottom quartile of the county comparison. This gap in tested proficiency warrants direct conversation with the school about academic support, intervention pathways, and how the school supports students working below grade level. A parent evaluating Sayville High should ask what academic interventions, tutoring, or support classes are available, how the school identifies and serves struggling learners, and what the typical progression looks like for students entering below proficiency.

See more original research from School Decision →

Academic performance

State test results and graduation outcomes.

Graduation rate (ACGR)

98.0%Cohort of 226 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

23 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

38 tested

68.4%

scored 3 or higher

Calculus BC

38 tested

39.5%

scored 3 or higher

Computer Science A

8 tested

50.0%

scored 3 or higher

Precalculus

61 tested

98.4%

scored 3 or higher

Statistics

43 tested

53.5%

scored 3 or higher

Sciences

Biology

25 tested

84.0%

scored 3 or higher

Chemistry

29 tested · Grade 10

86.2%

scored 3 or higher

Environmental Science

31 tested

80.6%

scored 3 or higher

Physics 1

30 tested

46.7%

scored 3 or higher

English

Research

12 tested

100.0%

scored 3 or higher

Seminar

26 tested · Grade 10

100.0%

scored 3 or higher

History and Social Sciences

Comparative Government and Politics

19 tested

57.9%

scored 3 or higher

Macroeconomics

20 tested

55.0%

scored 3 or higher

Psychology

33 tested · Grade 10

48.5%

scored 3 or higher

U.S. History

42 tested

90.5%

scored 3 or higher

World Languages and Cultures

French Language and Culture

8 tested

75.0%

scored 3 or higher

Spanish Language and Culture

18 tested

88.9%

scored 3 or higher

Arts

Music Theory

9 tested

44.4%

scored 3 or higher

Studio Art Drawing

5 tested

0.0%

scored 3 or higher

Other

Language and Comp

74 tested

81.1%

scored 3 or higher

Literature and Comp

50 tested

98.0%

scored 3 or higher

Studio Art 2d Design

11 tested

54.5%

scored 3 or higher

U S Government and Politics

25 tested

80.0%

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
Social Studies	220	94.0%
Ela	201	97.0%
Science	86	73.0%
Math	10	60.0%

Math

Grade 80%

School 0% · District 29% · ▼ 29 pts below district

▼ 37 pts below state median · ▼ 25 pts below county median

English language arts

Grade 80%

School 0% · District 55% · ▼ 55 pts below district

▼ 48 pts below state median · ▼ 44 pts below county median

Science

Grade 80%

School 0% · District 67% · ▼ 67 pts below district

▼ 33 pts below state median · ▼ 27 pts below county median

This schoolSAYVILLE UNION FREE SCHOOL DISTRICT, same grade

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.