Very Good
#1252 of 4,739 schools in NY
Top 26% in state
Castleton Academy High School of Oceanside
High School · OCEANSIDE UNION FREE SCHOOL DISTRICT
25 CASTLETON CT, Oceanside, NY 11572
Enrollment
34
Student-Teacher
5.7:1
Score
7.4
Grades
9th – 12th
Enrollment
34
Student-Teacher
5.7:1
Score
7.4
Grades
9th – 12th
Updated
2022-23
Updated 2022-23
How this school compares
In Oceanside
#8 of 10
public schools
New York high schools
#310 of 1,160
In district
#8 of 10
OCEANSIDE UNION FREE SCHOOL DISTRICT
Academic performance
8.3 / 10
Very strong
About Castleton Academy High School of Oceanside
Castleton Academy High School of Oceanside serves 34 students in grades 9-12 with an exceptionally small class environment, maintaining a student-teacher ratio of just 5.7 to 1 with six full-time equivalent teachers. This intimate setting allows for highly personalized attention and instruction that appears to be paying dividends academically. The school demonstrates solid academic performance, earning a 7.6 out of 10 MySchoolScout rating and ranking in the 84th percentile statewide at #764 out of 4,758 New York high schools.
Students show strong proficiency rates with 75% meeting or exceeding standards in both English Language Arts and Mathematics across all grade levels. Located on Castleton Court in Oceanside, the school serves a well-educated and economically stable community where 48% of residents hold bachelor's degrees or higher and the median household income reaches $134,615. The low poverty rate of just 3.3% reflects the area's overall prosperity, with median home values around $608,100.
The school's small size creates a unique high school experience where students can receive individualized support while still accessing a comprehensive curriculum. Castleton Academy operates within Nassau County's large suburban landscape, offering students both the benefits of a close-knit learning environment and access to the broader educational and cultural opportunities of the greater Long Island region.
What Parents Should Know
With an enrollment of 34 students, Castleton Academy High School of Oceanside is a smaller school where families often find a close-knit community atmosphere. Smaller settings can mean more individual attention from teachers and staff, though they may offer fewer extracurricular options than larger schools.
With a student-teacher ratio of 5.7:1, Castleton Academy High School of Oceanside offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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Castleton Academy High School of Oceanside — Students at Castleton Academy High School of Oceanside score 75% proficient, which is above what's typical for similar communities (expected: 62%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
41.2%
Students qualifying for federal meal assistance
Test Scores NY EDFACTS (2020-21)
Based on 3 test records from NY state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 7.1/10.
How Castleton Academy High School of Oceanside Compares
See how Castleton Academy High School of Oceanside performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has remained stable from 75% (2019) to 75% (2021).
Location
25 CASTLETON CT, Oceanside, NY 11572
Nearby Alternatives
Families considering Castleton Academy High School of Oceanside may also want to explore other high schools in the area. SCHOOL 7-OCEANSIDE SENIOR HIGH SCHOOL (rated 8.6/10, 0.6 miles away), which scores notably higher. Another option is SOUTH SIDE HIGH SCHOOL (rated 7.7/10, 1.8 miles away, in nearby Rockville Centre), with a very similar rating. Additionally, EAST ROCKAWAY JUNIOR-SENIOR HIGH SCHOOL (rated 7.6/10, 1.1 miles away, in nearby East Rockaway), with a very similar rating. For more schools in Oceanside, see our Oceanside schools guide .
Nearby Schools
20 within 1.6 mi| School | Distance | Rating |
|---|---|---|
| SCHOOL 6-KINDERGARTEN CENTER Oceanside | 0.0 mi | 4.8 |
| SCHOOL 5 Oceanside | 0.6 mi | 7.9 |
| SCHOOL 7-OCEANSIDE SENIOR HIGH SCHOOL Oceanside | 0.6 mi | 8.6 |
| SCHOOL 2 Oceanside | 0.5 mi | 8.3 |
| SCHOOL 4 Oceanside | 0.8 mi | 7.6 |
| SCHOOL 3 Oceanside | 0.6 mi | 8.0 |
| SCHOOL 8 Oceanside | 1.0 mi | 7.4 |
| RIVERSIDE SCHOOL Rockville Centre | 1.1 mi | 8.9 |
| SOUTH SIDE MIDDLE SCHOOL Rockville Centre | 1.3 mi | 7.0 |
| SCHOOL 9M-OCEANSIDE MIDDLE SCHOOL Oceanside | 1.4 mi | 6.8 |
| EAST ROCKAWAY JUNIOR-SENIOR HIGH SCHOOL East Rockaway | 1.1 mi | 7.6 |
| SCHOOL 9E-BOARDMAN ELEMENTARY SCHOOL Oceanside | 1.5 mi | 8.3 |
| ROSA LEE YOUNG CHILDHOOD CENTER Rockville Centre | 1.5 mi | — |
| WATSON SCHOOL Rockville Centre | 1.7 mi | 7.2 |
| STEELE ELEMENTARY SCHOOL Baldwin | 1.4 mi | 8.6 |
| PLAZA ELEMENTARY SCHOOL Baldwin | 1.7 mi | 8.4 |
| CENTRE AVENUE ELEMENTARY SCHOOL East Rockaway | 1.5 mi | 8.7 |
| SOUTH SIDE HIGH SCHOOL Rockville Centre | 1.8 mi | 7.7 |
| WILSON SCHOOL Rockville Centre | 1.9 mi | 8.8 |
| RHAME AVENUE ELEMENTARY SCHOOL East Rockaway | 1.6 mi | 7.8 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 11572 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$144,419
Median Home Value
$627,300
Median Rent
$2,118/mo
Population
30,627
College Educated
47.6%
Homeownership
91.8%
Avg Commute
35.6 min
Poverty Rate
2.8%
Median Age
44.5
Community Profile
The community surrounding Castleton Academy High School of Oceanside has a median household income of $144,419. It is a well-educated community where 48% of adults hold a bachelor's degree or higher. The median home value in the area is $627,300, with a median rent of $2,118/month. The local poverty rate of 2.8% is relatively low. The average commute in the area is 36 minutes, which is above the national average. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| REACH ACADEMY (THE) West Harrison, NY | 7.4 |
| CHILDREN'S HOME OF KINGSTON Kingston, NY | 7.6 |
| FRANKLIN-ESSEX-HAMILTON BOCES Malone, NY | 7.1 |
| MARTIN LUTHER KING JR HIGH SCHOOL Hastings on Hudson, NY | 7.9 |
| THE KARAFIN SCHOOL Mount Kisco, NY | 6.9 |
| ST ANNE INSTITUTE Albany, NY | 6.8 |
Frequently Asked Questions
Common questions about Castleton Academy High School of Oceanside
What grades does Castleton Academy High School of Oceanside serve?
Castleton Academy High School of Oceanside serves students in grades 9th through 12th.
How many students attend Castleton Academy High School of Oceanside?
Castleton Academy High School of Oceanside has an enrollment of approximately 34 students.
What is the student-teacher ratio at Castleton Academy High School of Oceanside?
The student-teacher ratio at Castleton Academy High School of Oceanside is 5.7:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Castleton Academy High School of Oceanside rank in NY?
Castleton Academy High School of Oceanside is ranked #1252 out of 4,739 schools in NY.
What is Castleton Academy High School of Oceanside's MySchoolScout rating?
Castleton Academy High School of Oceanside has a composite rating of 7.4 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Castleton Academy High School of Oceanside?
Based on the most recent state assessment data, Castleton Academy High School of Oceanside has 75.0% math proficiency and 75.0% reading/ELA proficiency.
Is Castleton Academy High School of Oceanside a charter school?
No, Castleton Academy High School of Oceanside is not a charter school. It is a traditional public school operated by the local school district.
Is Castleton Academy High School of Oceanside a Title I school?
No, Castleton Academy High School of Oceanside is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Castleton Academy High School of Oceanside?
41.2% of students at Castleton Academy High School of Oceanside qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 34
- Student-Teacher Ratio
- 5.7:1
- Teachers (FTE)
- 6
- Free/Reduced Lunch
- 41.2%
- Type
- regular
- Setting
- Large Suburb
- County
- Nassau County
- Phone
- (516) 678-7593
- Data Year
- 2023–2024
Resources & Links
District
OCEANSIDE UNION FREE SCHOOL DISTRICT- District Enrollment
- 5,544
- Schools in District
- 10
- Per-Pupil Spending
- $28,562
- District Rank
- #8 of 10
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
- Best Public Schools in New York 2026: Top Districts from NYC to the Suburbsbest schools
- Best Schools in New York, NY — 2026 Rankingsbest schools
- Best States for Public Schools in 2026: A Complete Rankingdata insights
- Charter Schools vs Public Schools: What the Data Actually Shows (2026)school choice
- Student-Teacher Ratio by State: Complete 2026 Rankingsdata insights
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