Enrollment
1,577
New York · 2024-25 NCES data
High school (grades 9-12) · Ossining, NY
Ossining High School
Federal NCES profile for Ossining High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 50/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 362202003121
👥 S:T ratio 52
📚 AP courses 35
🌟 Gifted program 30
🎓 Counselors 61
📋 Attendance 73
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Ossining High School earns 50/100 on the Resource Investment Index, with class sizes near the New York median. It is also one of the largest schools in New York.
- #1 of 6
- public schools in Ossining · Resource Index
- 50
- Resource Index · Higher
- 12.1:1
- students per teacher
- 46.5%
- free-lunch eligible
Ossining High School has class sizes near the New York median. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Ossining High School ranks #1 of 6 public schools in Ossining, NY.
School address
District: Ossining Union Free School District · New York
NCES ID 362202003121 Verify on NCES CCD record →
Teachers (FTE)
130.0
Federal CCD staff survey
Students per teacher
12.1:1
vs 11.8:1 New York avg
+3% vs state
Free-lunch eligible
46.5%
vs 56.2% New York avg
-17% vs state
Student-teacher ratio in context
How Ossining High School compares with New York and U.S. medians
What stands out at Ossining High School
Ossining High School is a large high school in Ossining, New York, enrolling 1,577 students.
Class loads run somewhat heavier than typical: 12.1:1 puts it in the larger third of New York schools by student-teacher ratio.
Its free-meal eligibility rate of 46.5% lands close to the New York typical range, neither a high- nor low-need campus by this measure.
By headcount it is one of the larger campuses in New York, bigger than 98% of state schools at 1,577 students.
Its Resource Investment Index lands in the upper third of 4,801 scored New York schools.
Among 125 similarly sized, similarly resourced-need New York schools statewide, it ranks #9, a top-tier result once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (69%) and White (16%) (diversity index 49/100).
On the academic-pipeline side it reports 7 Advanced Placement courses.
Counselor coverage is strong, about 197 students per counselor, inside the American School Counselor Association's recommended 250:1.
10.7% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The federal civil-rights collection also records 20 expulsions at this campus for 2021-22.
Ossining Union Free School District also operates Anne M Dorner Middle School (1,032 students) and Claremont School (732 students) alongside Ossining High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Ossining High School compares
Ossining High School on the metrics families compare, against New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.1:1 | ▲ 3% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 46.5% | ▼ 17% | 56.2% | 51.7% |
| Enrollment | 1,577 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.1:1
Leaner classes than 75% of US schools, among the more generously staffed nationally.
1,577
Bigger than 96% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
46.5%
free-lunch eligible
- 17% below the New York average of 56.2%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
12.1:1
students per teacher
- 3% above state mean
Top 61% in New York - lower ratio than 39% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
10.7%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$26,517
per pupil, district-wide
- above New York avg of $26,410
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors8.0 FTE
Per 197 students, the combined health-and-guidance staffing load for this school.
Discipline context
19
in-school suspensions + 78 out-of-school
Suspension rate: 1.2 per 100 students. Combined in-school and out-of-school rate: 6.2 per 100 students. Reported via the Civil Rights Data Collection. Includes 20 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 69.1%
White 16.3%
African American 8.7%
Asian 3.0%
Two or More 2.9%
American Indian / Alaska Native 0.1%
Largest group: Hispanic or Latino at 69.1% of enrollment.
Student-body diversity index 48.7/100
Simpson diversity index - at 48.7, Ossining High School is more mixed than the New York school average of 45.5.
Programs
AP courses offered 7
Funding & spending
District-wide per-pupil expenditure for Ossining Union Free School District, which includes Ossining High School.
$26,517
Per student
+0%
vs New York
Avg $26,410
+60%
vs U.S.
Avg $16,593
Revenue mix
Local 65.8%
State 29.0%
Federal 5.1%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Ossining High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Anne M Dorner Middle School | Smaller | Similar economic need | Lower S:T ratio |
| Claremont School | Smaller | Similar economic need | Similar S:T ratio |
| Brookside School | Smaller | Similar economic need | Similar S:T ratio |
| Park School | Smaller | Similar economic need | Higher S:T ratio |
| Roosevelt School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Ossining High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,032
- Students per teacher
- 10.5:1
- Resource Index
- 45/100
- Enrollment
- 732
- Students per teacher
- 12.8:1
- Resource Index
- 42/100
- Enrollment
- 672
- Students per teacher
- 11.4:1
- Resource Index
- 36/100
- Enrollment
- 572
- Students per teacher
- 13.6:1
- Resource Index
- 26/100
- Enrollment
- 374
- Students per teacher
- 12.1:1
- Resource Index
- 42/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of New York, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,577 students)
Next steps
Verify locally before acting on Ossining High School's federal record.
- Compare Ossining High School against another school. Compare schools
- Ossining Union Free School District's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Ossining High School
How many students attend Ossining High School?
Ossining High School has 1,577 students enrolled. It is a high school in Ossining, NY.
What is the student-teacher ratio at Ossining High School?
The student-teacher ratio at Ossining High School is 12.1:1, which is 3% higher than the New York average of 11.8:1 and 23% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Ossining High School?
46.5% of students at Ossining High School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Ossining High School?
The largest demographic group at Ossining High School is Hispanic or Latino at 69.1% of enrollment, in Ossining, NY.
What is the Resource Investment Index for Ossining High School?
Ossining High School has a Resource Investment Index of 50/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Ossining High School rank among public schools in Ossining?
By Resource Investment Index, Ossining High School ranks #1 of 6 public schools in Ossining, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Ossining on the city page.
Is Ossining High School a good school?
Ossining High School earns 50/100 on the Resource Investment Index, with class sizes near the New York median. It is also one of the largest schools in New York. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Ossining Union Free School District?
Besides Ossining High School, Ossining Union Free School District also operates Anne M Dorner Middle School (1,032 students), Claremont School (732 students), and Brookside School (672 students). See the Ossining Union Free School District district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.