Enrollment
137
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Buffalo, IL
Federal NCES profile for Tri-City Jr High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
The verdict
Tri-City Jr High School earns 33/100 on the Resource Investment Index, with class sizes larger than 71% of Illinois schools.
Tri-City Jr High School has class sizes larger than 71% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Tri-City Jr High School ranks #2 of 3 public schools in Buffalo, IL.
NCES ID 173945004860 Verify on NCES CCD record →
Enrollment
137
Illinois · 2024-25 NCES data
Teachers (FTE)
9.0
Federal CCD staff survey
Students per teacher
15.2:1
vs 14:1 Illinois avg
+9% vs state
How Tri-City Jr High School compares with Illinois and U.S. medians
Slightly above state median
15.2:1 - 1.2 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Tri-City Jr High School is a small middle school in Buffalo, Illinois, enrolling 137 students.
Class loads run somewhat heavier than typical: 15.2:1 puts it in the larger third of Illinois schools by student-teacher ratio.
This is a small campus: fewer students than 91% of Illinois schools, with 137 enrolled.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is predominantly White (91% of enrollment) (diversity index 17/100).
Counselor coverage runs a bit thin, about 274 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 32.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Tri City Cusd 1 spends $11,875 per pupil, 30% below the Illinois average, a leaner-resourced district than most.
Tri City Cusd 1 also operates Tri-City Elem School (273 students) and Tri-City High School (154 students) alongside Tri-City Jr 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
Tri-City Jr High School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.2:1 | ▲ 9% | 14:1 | 15.7:1 |
| Enrollment | 137 | top 91% | - | - |
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 91.2% of enrollment.
Simpson diversity index - at 16.6, Tri-City Jr High School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Tri City Cusd 1, which includes Tri-City Jr 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 |
|---|---|---|---|
| Tri-City Elem School | Larger | No free-lunch data | Lower S:T ratio |
| Tri-City High School | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Tri-City Jr 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 Illinois, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Tri-City Jr 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.
Tri-City Jr High School has 137 students enrolled. It is a middle school in Buffalo, IL.
The student-teacher ratio at Tri-City Jr High School is 15.2:1, which is 9% higher than the Illinois average of 14:1 and 3% lower than the national average of 15.7:1.
The largest demographic group at Tri-City Jr High School is White at 91.2% of enrollment, in Buffalo, IL.
Tri-City Jr High School has a Resource Investment Index of 33/100 (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, Tri-City Jr High School ranks #2 of 3 public schools in Buffalo, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Buffalo on the city page.
Tri-City Jr High School earns 33/100 on the Resource Investment Index, with class sizes larger than 71% of Illinois 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 Tri-City Jr High School, Tri City Cusd 1 also operates Tri-City Elem School (273 students) and Tri-City High School (154 students). See the Tri City Cusd 1 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, “Tri-City Jr High School, Buffalo IL.” 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/tri-city-jr-high-school-il/
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