Enrollment
1,010
New York · 2024-25 NCES data
High school (grades 9-12) · New Windsor, NY
Federal NCES profile for Cornwall Central High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 53/100.
The verdict
Cornwall Central High School earns 53/100 on the Resource Investment Index, with class sizes larger than 77% of New York schools.
Cornwall Central High School has class sizes larger than 77% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Cornwall Central High School ranks #2 of 7 public schools in New Windsor, NY.
NCES ID 360843000642 Verify on NCES CCD record →
Enrollment
1,010
New York · 2024-25 NCES data
Teachers (FTE)
74.0
Federal CCD staff survey
Students per teacher
13.6:1
vs 11.8:1 New York avg
+15% vs state
Free-lunch eligible
17.9%
vs 56.2% New York avg
-68% vs state
How Cornwall Central High School compares with New York and U.S. medians
Slightly above state median
13.6:1 - 1.8 above the New York state median of 11.8:1, indicating larger average class loads than typical schools in the state.
Cornwall Central High School is a lower-poverty, large high school in New Windsor, New York, enrolling 1,010 students.
Class loads run somewhat heavier than typical: 13.6:1 puts it in the larger third of New York schools by student-teacher ratio.
Comparatively few students face economic hardship here, 17.9% free-meal eligibility runs 68% below the New York average.
By headcount it is one of the larger campuses in New York, bigger than 92% of state schools at 1,010 students.
Its Resource Investment Index lands in the upper third of 4,801 scored New York schools.
Against 294 statewide peers matched on enrollment and economic need, it ranks mid-pack at #161.
Its student body is led by White (57%) and Hispanic or Latino (25%) (diversity index 60/100).
On the academic-pipeline side it reports 15 Advanced Placement courses.
Counselor coverage is strong, about 144 students per counselor, inside the American School Counselor Association's recommended 250:1.
Attendance runs somewhat below the norm, with 22.7% of students chronically absent per the 2021-22 civil-rights collection.
Cornwall Central School District also operates Cornwall Middle School (905 students) and Cornwall Elementary School (595 students) alongside Cornwall Central 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
Cornwall Central 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 | 13.6:1 | ▲ 15% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 17.9% | ▼ 68% | 56.2% | 51.7% |
| Enrollment | 1,010 | top 8% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: White at 57.0% of enrollment.
Simpson diversity index - at 60.1, Cornwall Central High School is more mixed than the New York school average of 45.5.
District-wide per-pupil expenditure for Cornwall Central School District, which includes Cornwall Central High School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Cornwall Middle School | Similar size | Similar economic need | Lower S:T ratio |
| Cornwall Elementary School | Smaller | Similar economic need | Higher S:T ratio |
| Cornwall-on-Hudson Elementary School | Smaller | Similar economic need | Similar S:T ratio |
| Willow Avenue Elementary School | Smaller | Similar economic need | Higher S:T ratio |
Comparisons are relative to Cornwall Central High School's own figures; each column derives from NCES Common Core of Data.
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.
Next steps
Verify locally before acting on Cornwall Central High School's federal record.
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.
Cornwall Central High School has 1,010 students enrolled. It is a high school in New Windsor, NY.
The student-teacher ratio at Cornwall Central High School is 13.6:1, which is 15% higher than the New York average of 11.8:1 and 13% lower than the national average of 15.7:1.
17.9% of students at Cornwall Central High School are eligible for free lunch, compared to the New York average of 56.2%.
The largest demographic group at Cornwall Central High School is White at 57.0% of enrollment, in New Windsor, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 60.1/100.
Cornwall Central High School has a Resource Investment Index of 53/100 (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).
By Resource Investment Index, Cornwall Central High School ranks #2 of 7 public schools in New Windsor, 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 New Windsor on the city page.
Cornwall Central High School earns 53/100 on the Resource Investment Index, with class sizes larger than 77% of New York schools. 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.
Besides Cornwall Central High School, Cornwall Central School District also operates Cornwall Middle School (905 students), Cornwall Elementary School (595 students), and Cornwall-on-Hudson Elementary School (239 students). See the Cornwall Central School District district page for the complete list.
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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Cornwall Central High School, New Windsor NY.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/cornwall-central-high-school-ny
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.