Enrollment
1,032
New York · 2024-25 NCES data
Middle school (grades 6-8) · Ossining, NY
Anne M Dorner Middle School
Federal NCES profile for Anne M Dorner Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 362202003118
👥 S:T ratio 58
🌟 Gifted program 30
🎓 Counselors 31
📋 Attendance 63
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Anne M Dorner Middle School earns 45/100 on the Resource Investment Index, with class sizes near the New York median.
- #2 of 6
- public schools in Ossining · Resource Index
- 45
- Resource Index · Typical
- 10.5:1
- students per teacher
- 48.0%
- free-lunch eligible
Anne M Dorner Middle School has class sizes near the New York median. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Anne M Dorner Middle School ranks #2 of 6 public schools in Ossining, NY.
School address
District: Ossining Union Free School District · New York
NCES ID 362202003118 Verify on NCES CCD record →
Teachers (FTE)
98.0
Federal CCD staff survey
Students per teacher
10.5:1
vs 11.8:1 New York avg
-11% vs state
Free-lunch eligible
48.0%
vs 56.2% New York avg
-15% vs state
Student-teacher ratio in context
How Anne M Dorner Middle School compares with New York and U.S. medians
What stands out at Anne M Dorner Middle School
Anne M Dorner Middle School is a large middle school in Ossining, New York, enrolling 1,032 students.
Class sizes run a bit leaner than typical: 10.5:1 puts it in the smaller third of New York schools by student-teacher ratio.
Its free-meal eligibility rate of 48.0% 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 92% of state schools at 1,032 students.
Its Resource Investment Index lands in the upper third of 4,801 scored New York schools.
Against 284 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #51.
Its student body is led by Hispanic or Latino (70%) and White (16%) (diversity index 47/100).
Counselor availability sits well past the ASCA benchmark, roughly 344 students sharing each counselor, though short of the most stretched campuses.
14.9% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Ossining Union Free School District also operates Ossining High School (1,577 students) and Claremont School (732 students) alongside Anne M Dorner Middle 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 Anne M Dorner Middle School compares
Anne M Dorner Middle 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 | 10.5:1 | ▼ 11% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 48.0% | ▼ 15% | 56.2% | 51.7% |
| Enrollment | 1,032 | top 8% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.5:1
Leaner classes than 86% of US schools, among the more generously staffed nationally.
1,032
Bigger than 92% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
48.0%
free-lunch eligible
- 15% 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
10.5:1
students per teacher
- 11% below state mean
Top 37% in New York - lower ratio than 63% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
14.9%
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
Counselors3.0 FTE
Per 344 students, the combined health-and-guidance staffing load for this school.
Discipline context
57
in-school suspensions + 105 out-of-school
Suspension rate: 5.5 per 100 students. Combined in-school and out-of-school rate: 15.7 per 100 students. Reported via the Civil Rights Data Collection.
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 70.1%
White 16.4%
African American 7.6%
Two or More 3.4%
Asian 2.5%
Native Hawaiian / Pacific Islander 0.1%
Largest group: Hispanic or Latino at 70.1% of enrollment.
Student-body diversity index 47.4/100
Simpson diversity index - at 47.4, Anne M Dorner Middle School is about as mixed as the New York school average of 45.5.
Programs
Funding & spending
District-wide per-pupil expenditure for Ossining Union Free School District, which includes Anne M Dorner Middle 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 Anne M Dorner Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Ossining High School | Larger | Similar economic need | Higher S:T ratio |
| Claremont School | Smaller | Similar economic need | Higher 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 | Higher S:T ratio |
Comparisons are relative to Anne M Dorner Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,577
- Students per teacher
- 12.1:1
- Resource Index
- 54/100
- 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 middle 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 (~1,032 students)
Similar student-teacher ratio (~10.5:1)
Next steps
Verify locally before acting on Anne M Dorner Middle School's federal record.
- Compare Anne M Dorner Middle 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 Anne M Dorner Middle School
How many students attend Anne M Dorner Middle School?
Anne M Dorner Middle School has 1,032 students enrolled. It is a middle school in Ossining, NY.
What is the student-teacher ratio at Anne M Dorner Middle School?
The student-teacher ratio at Anne M Dorner Middle School is 10.5:1, which is 11% lower than the New York average of 11.8:1 and 33% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Anne M Dorner Middle School?
48.0% of students at Anne M Dorner Middle School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Anne M Dorner Middle School?
The largest demographic group at Anne M Dorner Middle School is Hispanic or Latino at 70.1% of enrollment, in Ossining, NY.
What is the Resource Investment Index for Anne M Dorner Middle School?
Anne M Dorner Middle School has a Resource Investment Index of 45/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Anne M Dorner Middle School rank among public schools in Ossining?
By Resource Investment Index, Anne M Dorner Middle School ranks #2 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 Anne M Dorner Middle School a good school?
Anne M Dorner Middle School earns 45/100 on the Resource Investment Index, with class sizes near the New York median. 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 Anne M Dorner Middle School, Ossining Union Free School District also operates Ossining High School (1,577 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.