Enrollment
933
New York · 2024-25 NCES data
Other / mixed grade configuration · Buffalo, NY
Federal NCES profile for International School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 23/100.
The verdict
International School earns 23/100 on the Resource Investment Index, with class sizes near the New York median. It is also more racially and ethnically mixed than most New York schools.
International School has class sizes near the New York median. Computed live against every New York school reporting to NCES.
By Resource Investment Index, International School ranks #41 of 49 schools in Buffalo, NY.
NCES ID 360585000341 Verify on NCES CCD record →
Enrollment
933
New York · 2024-25 NCES data
Teachers (FTE)
86.0
Federal CCD staff survey
Students per teacher
10.8:1
vs 11.8:1 New York avg
-8% vs state
Free-lunch eligible
91.8%
vs 56.2% New York avg
+63% vs state
How International School compares with New York and U.S. medians
At or below state median
10.8:1 - 1.0 below the New York state median of 11.8:1, indicating smaller average class loads than typical schools in the state.
International School is a high-poverty, large combined-grade school in Buffalo, New York, enrolling 933 students.
At 10.8:1, 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 is high: 91.8% of students qualify for free meals, 63% above the New York average, a Title I-weighted population that federal funding formulas prioritise.
By headcount it is one of the larger campuses in New York, bigger than 90% of state schools at 933 students.
Its Resource Investment Index trails 91% of the 4,801 New York schools with a score on record, one of the lower results on this measure.
Among 320 similarly sized, similarly resourced-need New York schools statewide, it ranks #228, in the lower tier once campus size and economic need are matched.
Its student body is led by African American (37%) and Asian (35%), more mixed than most schools in the state (diversity index 71/100).
Counselor access is stretched at roughly 467 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 77.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 26.5% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Buffalo City School District also operates Hutchinson Central Technical High School (1,140 students) and City Honors School (1,088 students) alongside International 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
International 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 | 10.8:1 | ▼ 8% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 91.8% | ▲ 63% | 56.2% | 51.7% |
| Enrollment | 933 | top 10% | - | - |
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: African American at 37.4% of enrollment.
Simpson diversity index - at 70.7, International School is more mixed than the New York school average of 45.5.
District-wide per-pupil expenditure for Buffalo City School District, which includes International 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 |
|---|---|---|---|
| Hutchinson Central Technical High School | Similar size | Lower economic need | Higher S:T ratio |
| City Honors School | Similar size | Lower economic need | Higher S:T ratio |
| Frederick Olmsted #156 | Similar size | Lower economic need | Similar S:T ratio |
| Mckinley Vocational High School | Similar size | Similar economic need | Lower S:T ratio |
| South Park High School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to International 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 International 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.
International School has 933 students enrolled. It is a public school in Buffalo, NY.
The student-teacher ratio at International School is 10.8:1, which is 8% lower than the New York average of 11.8:1 and 31% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
91.8% of students at International School are eligible for free lunch, compared to the New York average of 56.2%.
The largest demographic group at International School is African American at 37.4% of enrollment, in Buffalo, NY. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 70.7/100.
International School has a Resource Investment Index of 23/100 (lower 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, International School ranks #41 of 49 schools in Buffalo, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Buffalo on the city page.
International School earns 23/100 on the Resource Investment Index, with class sizes near the New York median. It is also more racially and ethnically mixed than most 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 International School, Buffalo City School District also operates Hutchinson Central Technical High School (1,140 students), City Honors School (1,088 students), and Frederick Olmsted #156 (928 students). See the Buffalo City 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, “International School, Buffalo 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/international-school-ny
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