- Enrollment
- 1,032
- Students per teacher
- 10.5:1
- Resource Index
- 45/100
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 54/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 362202003121
👥 S:T ratio 52
🌟 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 54/100 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
- 54
- 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 →
CCD year-over-year · 2022-23 → 2023-24
+46 students YoY
Ossining High School held near 1,598 students from 2022-23 to 2023-24 (+46 headcount).
Teacher FTE lost 130.9 → 129.1 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+46 students YoY 362202003121 · Ossining, NY High · MID · TRAD
1,577 enr · 12.1:1 · 46.5% lunch · RII 54
Nearest enrollment peer: Anne M Dorner Middle School (1,032 students)
Ossining High School held near 1,598 students from 2022-23 to 2023-24 (+46 headcount). Teacher FTE lost 130.9 → 129.1 across the same CCD years. Read with this school → · District book → · New York schools → · Find another →
Ossining High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Ossining High School
1,577 students
- Anne M Dorner
Anne M Dorner Middle School
1,032 students
- Claremont Scho
Claremont School
732 students
- Brookside Scho
Brookside School
672 students
- Park School 572
Park School
572 students
- Roosevelt Scho 374
Roosevelt School
374 students
What this shows Ossining High School reports 1,577 students on the CCD universe file.
How Ossining High School compares
Ossining High School held steady on CCD headcount: ratios and free-lunch share vs 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 methodology
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
$29,766
per pupil, district-wide
- above New York avg of $28,120
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.
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
District finance for Ossining Union Free School District reports $29,766 per pupil (NCES F-33) - open the district page for the full revenue mix.
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
- 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
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~1,577 students)
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. CCD year-over-year: 1,552 (2022-23) → 1,598 (2023-24), nearly flat (+46).
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 54/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. 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.
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.