Enrollment
35
High
DISTRICT 852 · STATE 668
SCHOOL COMMUNITY·OCEANSIDE UNION FREE SCHOOL DISTRICT·NCES 362157006053
CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE
25 CASTLETON CT, OCEANSIDE, NY 11572 · (516) 678-7593 · Nassau County
GRADES 09–12HIGH21-SUBURBTITLE IREGULAR SCHOOL35 STUDENTS
B-
allk12 Grade
Scored higher than 47% of New York public high schools
- B-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- C+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded New York public high schools
Student : Teacher
4.6:1
8 FTE teachers
DISTRICT 8.0:1 · STATE 11.0:1
Free / Reduced Lunch
49%
17 students
DISTRICT 20% · STATE 58%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 10 | 4 | 11% |
| Grade 11 | 13 | 37% |
| Grade 12 | 18 | 51% |
Student demographics
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
QUIET COMMUNITY
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START A DISCUSSIONTest scores
NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)English Language Arts
81.0%
NY avg 58.3% . -2.0pp since 2023
Math
25.0%
NY avg 57.4% . +3.0pp since 2023
What this means: On the NYS Assessments, New York's statewide test, about 81 of every 100 students at this school read and write at grade level and about 25 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are down about 2 points since 2023, while math scores are up about 3 points.
NYS Assessments results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 81.0% | 25.0% |
| 2023-24 | 83.0% | 22.0% |
% Proficient (Level 3 + Level 4), all students and all tested grades.
Source: NYS Assessments. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
58.8%
composite math + reading, all grades
Predicted
57.1%
based on NY schools with similar FRL share
Beats by
+1.7pp
above demographic expectation
What this means: About 59% of students here test proficient in math and reading, compared with the roughly 57% typical for New York schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among New York's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Where CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE ranks
Among high schools| Measure | This school | In New York | In Nassau County |
|---|---|---|---|
| Enrollment ranked largest first | 35 | #1,199 of 1,216 | #59 of 59 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
35
-1 (-3%) vs 2020
-35% since 2010-11, when it was 54
Student : Teacher
4.6:1
was 5.1:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 35 | 7.6 | 4.6:1 | 49% (17) |
| 2023-24 | 34 | 6.9 | 5.0:1 | 41% (14) |
| 2022-23 | 50 | 7.9 | 6.3:1 | 36% (18) |
| 2020-21 | 36 | 7 | 5.1:1 | 42% (15) |
| 2017-18 | 43 | 4 | 10.8:1 | 47% (20) |
| 2015-16 | 52 | 2 | 26.0:1 | 42% (22) |
| 2010-11 | 54 | 3 | 18.0:1 | 24% (13) |
Source: NCES Common Core of Data. Rows are the federal collections on file for CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE.
About CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE
CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE serves students in OCEANSIDE, New York, as a small high school. The school had 35 students in grades 9 through 12 in 2024-25. Average enrollment for high schools in New York is about 668, so this school runs 95% smaller than that.
OCEANSIDE UNION FREE SCHOOL DISTRICT has a total of 10 schools and 5,465 students, CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE among them.
CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE is 57% Hispanic by enrollment. Beyond that, enrollment is 29% White, 6% Asian, 6% multiracial, and 3% Black. In Nassau County overall, about 19% of residents are Hispanic.
Federal records show a student-to-teacher ratio of 4.6:1 at CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE, with 7.6 full-time-equivalent teachers. On average, high schools in New York have 11.0:1, compared with 4.6:1 here. The count of students eligible for free or reduced-price lunch equals 49% of enrollment. On average, public schools in Nassau County report 31%.
The allk12 Grade for CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE is B-. Compared with New York public high schools, the school scored higher than 47% on a mix of test scores, poverty-adjusted results, and recent trend.
A school with CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE's lunch-eligibility share in New York is predicted to score 57.1%. CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE scores 58.8%, 1.7 points above that line.
Nassau County has about 1,389,591 residents, and the median household income is $146,202, the share of adults with a bachelor's degree or higher is 50%, and about 4% of people live in poverty. Besides CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE, Nassau County has 314 other public schools.
Of nearby public schools, SCHOOL 6-KINDERGARTEN CENTER is the closest, at less than a tenth of a mile. CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE has at least 8 other public schools within five miles. The school's 58.8% average proficiency ranks 7th among 8 nearby schools.
Under the NCES locale system, CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE is Suburb: Large.
Enrollment at CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE dropped 3% between 2020-21 and 2024-25, from 36 to 35 students.
Parents and students can post about sports schedules, lunch menus, and spirit week at CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE. Questions from prospective families are welcome too.
Nassau County at a glance
View full county profilePopulation
1,389,591
Census ACS
Median income
$146,202
Household, ACS
Bachelor's+
50%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
315
200,775 students
Quick facts
Related schools
Other schools in OCEANSIDE UNION FREE SCHOOL DISTRICT
- SCHOOL 7-OCEANSIDE SENIOR HIGH SCHOOLHigh · 1,668 students
- SCHOOL 9M-OCEANSIDE MIDDLE SCHOOLMiddle · 801 students
- SCHOOL 6-KINDERGARTEN CENTERElementary · 625 students
- SCHOOL 5Elementary · 452 students
- SCHOOL 3Elementary · 447 students
- SCHOOL 8Elementary · 433 students
Other schools in OCEANSIDE
- SCHOOL 7-OCEANSIDE SENIOR HIGH SCHOOLHigh · 1,668 students
- SCHOOL 9M-OCEANSIDE MIDDLE SCHOOLMiddle · 801 students
- SCHOOL 6-KINDERGARTEN CENTERElementary · 625 students
- SCHOOL 5Elementary · 452 students
- SCHOOL 3Elementary · 447 students
- SCHOOL 8Elementary · 433 students
Nearby schools
- SCHOOL 6-KINDERGARTEN CENTER0.0 mi · 625
- SCHOOL 20.5 mi · 407
- SCHOOL 7-OCEANSIDE SENIOR HIGH SCHOOL0.6 mi · 1,668
- SCHOOL 50.6 mi · 452
- SCHOOL 30.6 mi · 447
- SCHOOL 40.8 mi · 264
Frequently asked questions
About CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDEHow many students attend CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE?
CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE enrolls approximately 35 students in grades 09-12.
What grades does CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE serve?
CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE serves grades 09-12.
What is the student-teacher ratio at CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE?
The student-to-teacher ratio at CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE is approximately 4.6:1 (8 FTE teachers).
What is the student diversity at CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE?
Student demographics at CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE are roughly 29% White, 57% Hispanic, 3% Black, 6% Asian, 6% Two or more.
What district is CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE in?
CASTLETON ACADEMY HIGH SCHOOL OF OCEANSIDE is part of OCEANSIDE UNION FREE SCHOOL DISTRICT.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.