Half Hollow Hills High School East, Dix Hills NY

Original Research by School Decision on Half Hollow Hills High School East

Half Hollow Hills High School East serves about that many students across grades 9 through 12 in Dix Hills, a mature, affluent suburban community on Long Island. The school sits on Vanderbilt Parkway in a landscape of spacious residential lots, mature trees, and dispersed civic institutions rather than a traditional walkable downtown. Families here are generally affluent, with owner-occupied homes on generous land and a mix of mid-century estates and newer construction. The local working population leans toward executive, managerial, and professional occupations, many tied to the Route 110 business corridor nearby in Melville.

The student body reflects the broader suburb's diversity. About half the enrollment is white, with substantial Asian, Hispanic, and Black student populations. Just under a third of students qualify for free or reduced-price lunch, a meaningful proportion that speaks to some economic spread within the service area. The school does not appear to operate as a Title I school. Data on special education enrollment and English learner populations were not available.

State assessment results, graduation rates, and chronic absenteeism figures were not provided, so those aspects of performance cannot be characterized here. The comparison fact-set drawn from Suffolk County districts also could not be computed for this school. This gap likely reflects the data available at the school level rather than weakness; parents interested in understanding Half Hollow Hills East's proficiency, graduation outcomes, or attendance patterns should ask the district directly or consult the district's public reporting.

The parent district, Half Hollow Hills Central School District, has taken a deliberate fiscal stance over the past few years that bears on the school community. The district has pursued a debt-free strategy, funding capital improvements from reserve accounts rather than issuing bonds. In 2022, voters approved a roof-replacement reserve; in 2024, they approved a second building-improvements reserve by a wide margin. High School East is currently undergoing roof reconstruction funded from those reserves. This fiscal approach means facility upgrades are funded without the interest and fees that long-term borrowing carries, a structural choice that shapes the district's property-tax outlook and capacity for ongoing maintenance. For families considering this area, it suggests a district that has built consensus around paying for large projects from savings and positioning itself toward debt-free status by 2027.

The Dix Hills setting itself is car-dependent and has no concentrated downtown. Residents drive to Huntington for shopping and dining, about eight miles away, or to nearby Deer Park. Transit is limited; Huntington's Long Island Rail Road station, roughly seven miles away, connects to Manhattan. The Half Hollow Hills Community Library and Dix Hills Park, which includes pools, courts, trails, a golf course, and the performing arts center, anchor local life. The real estate market shows strength, with home values and rental rates both above state benchmarks. Active inventory in Suffolk County has grown modestly year-over-year, and median time on market has shortened, reflecting a relatively active market. Residents here typically own their homes and remain long-term; the area is built out rather than newly developing, with infill projects and higher-end subdivision construction by builders like Toll Brothers.

For a parent or resident evaluating this school, the takeaway is an affluent suburban high school in a stable, well-maintained community with diverse student enrollment and a district working to manage facilities and taxes through responsible capital planning. Without access to test scores and graduation data, you will need to reach out to the school or district directly to understand academic performance and pathways.

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Academic performance

How students graduate and prepare for what comes next.

Graduation rate (ACGR)

97.0%Cohort of 380 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

33 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

92.1%

scored 3 or higher

Calculus BC

31 tested · Grade 10

96.8%

scored 3 or higher

Computer Science A

29 tested · Grade 10

69.0%

scored 3 or higher

Computer Science Principles

131 tested · Grade 9, Grade 10

63.4%

scored 3 or higher

Precalculus

18 tested · Grade 10

83.3%

scored 3 or higher

Statistics

43 tested · Grade 10

90.7%

scored 3 or higher

Sciences

Biology

107 tested · Grade 10

92.5%

scored 3 or higher

Chemistry

39 tested · Grade 10

82.1%

scored 3 or higher

Environmental Science

116 tested · Grade 9

77.6%

scored 3 or higher

Physics 1

31 tested

93.5%

scored 3 or higher

Physics 2

31 tested

87.1%

scored 3 or higher

Physics C: Electricity and Magnetism

14 tested

78.6%

scored 3 or higher

Physics C: Mechanics

15 tested

93.3%

scored 3 or higher

English

Research

39 tested

94.9%

scored 3 or higher

Seminar

102 tested · Grade 9, Grade 10

99.0%

scored 3 or higher

History and Social Sciences

European History

12 tested

91.7%

scored 3 or higher

Human Geography

44 tested · Grade 9, Grade 10

86.4%

scored 3 or higher

Macroeconomics

64 tested

87.5%

scored 3 or higher

Microeconomics

65 tested

72.3%

scored 3 or higher

Psychology

117 tested · Grade 10

92.3%

scored 3 or higher

U.S. History

112 tested

96.4%

scored 3 or higher

World Languages and Cultures

Chinese Language and Culture

4 tested

0.0%

scored 3 or higher

French Language and Culture

10 tested

70.0%

scored 3 or higher

Italian Language and Culture

9 tested

55.6%

scored 3 or higher

Spanish Language and Culture

17 tested

94.1%

scored 3 or higher

Arts

Art History

8 tested · Grade 10

0.0%

scored 3 or higher

Music Theory

7 tested

14.3%

scored 3 or higher

Studio Art Drawing

3 tested

0.0%

scored 3 or higher

Other

Language and Comp

30 tested

90.0%

scored 3 or higher

Literature and Comp

68 tested

91.2%

scored 3 or higher

Studio Art 2d Design

14 tested

92.9%

scored 3 or higher

U S Government and Politics

76 tested

88.2%

scored 3 or higher

World History

85 tested · Grade 10

98.8%

scored 3 or higher

New York Regents Exams

3 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	362	86.0%
Science	353	78.0%
Ela	343	86.0%

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.