Enrollment
481
New York · 2024-25 NCES data
Elementary school (grades K-5) · Wallkill, NY
Federal NCES profile for Ostrander Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
The verdict
Ostrander Elementary School earns 38/100 on the Resource Investment Index, with class sizes near the New York median.
Ostrander Elementary School has class sizes near the New York median. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Ostrander Elementary School ranks #4 of 4 public schools in Wallkill, NY.
NCES ID 362979004001 Verify on NCES CCD record →
Enrollment
481
New York · 2024-25 NCES data
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
11.7:1
vs 11.8:1 New York avg
-1% vs state
Free-lunch eligible
26.9%
vs 56.2% New York avg
-52% vs state
How Ostrander Elementary School compares with New York and U.S. medians
At or below state median
11.7:1 - 0.1 below the New York state median of 11.8:1, indicating smaller average class loads than typical schools in the state.
Ostrander Elementary School is a mid-sized elementary school in Wallkill, New York, enrolling 481 students.
At 11.7:1, its student-teacher ratio sits close to the New York median, within a few percentage points of the 11.8:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 26.9% of students eligible for free meals.
With 481 students, its enrollment sits close to the New York median campus size.
Its Resource Investment Index sits near the middle of the pack among 4,801 scored New York schools.
Against 840 statewide peers matched on enrollment and economic need, it ranks mid-pack at #569.
Its student body is led by White (67%) and Hispanic or Latino (24%) (diversity index 49/100).
Counselor access is stretched at roughly 1458 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 27.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Wallkill Central School District also operates Wallkill Senior High School (930 students) and Leptondale Elementary School (460 students) alongside Ostrander Elementary 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
Ostrander Elementary 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 | 11.7:1 | ▼ 1% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 26.9% | ▼ 52% | 56.2% | 51.7% |
| Enrollment | 481 | top 40% | - | - |
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 66.7% of enrollment.
Simpson diversity index - at 49.4, Ostrander Elementary School is more mixed than the New York school average of 45.5.
District-wide per-pupil expenditure for Wallkill Central School District, which includes Ostrander Elementary 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 |
|---|---|---|---|
| Wallkill Senior High School | Larger | Similar economic need | Similar S:T ratio |
| Leptondale Elementary School | Similar size | Similar economic need | Similar S:T ratio |
| Plattekill Elementary School | Similar size | Higher economic need | Similar S:T ratio |
| John G Borden Middle School | Similar size | Similar economic need | Lower S:T ratio |
Comparisons are relative to Ostrander Elementary 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 Ostrander Elementary 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.
Ostrander Elementary School has 481 students enrolled. It is an elementary school in Wallkill, NY.
The student-teacher ratio at Ostrander Elementary School is 11.7:1, which is 1% lower than the New York average of 11.8:1 and 25% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
26.9% of students at Ostrander Elementary School are eligible for free lunch, compared to the New York average of 56.2%.
The largest demographic group at Ostrander Elementary School is White at 66.7% of enrollment, in Wallkill, NY.
Ostrander Elementary School has a Resource Investment Index of 38/100 (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).
By Resource Investment Index, Ostrander Elementary School ranks #4 of 4 public schools in Wallkill, 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 Wallkill on the city page.
Ostrander Elementary School earns 38/100 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.
Besides Ostrander Elementary School, Wallkill Central School District also operates Wallkill Senior High School (930 students), Leptondale Elementary School (460 students), and Plattekill Elementary School (426 students). See the Wallkill 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.
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PlainSchools, “Ostrander Elementary School, Wallkill 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/ostrander-elementary-school-ny
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