Enrollment
154
Illinois · 2024-25 NCES data
High school (grades 9-12) · Buffalo, IL
Tri-City High School
Federal NCES profile for Tri-City High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 25/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 173945003991
👥 S:T ratio 49
📚 AP courses 10
🌟 Gifted program 30
🎓 Counselors 38
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Tri-City High School earns 25/100 on the Resource Investment Index, with class sizes near the Illinois median.
- #3 of 3
- public schools in Buffalo · Resource Index
- 25
- Resource Index · Lower
- 12.8:1
- students per teacher
- 154
- students enrolled
Tri-City High School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Tri-City High School ranks #3 of 3 public schools in Buffalo, IL.
School address
District: Tri City Cusd 1 · Illinois
NCES ID 173945003991 Verify on NCES CCD record →
Teachers (FTE)
12.0
Federal CCD staff survey
Students per teacher
12.8:1
vs 14:1 Illinois avg
-9% vs state
Student-teacher ratio in context
How Tri-City High School compares with Illinois and U.S. medians
What stands out at Tri-City High School
Tri-City High School is a small high school in Buffalo, Illinois, enrolling 154 students.
Class sizes run a bit leaner than typical: 12.8:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 154 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is predominantly White (90% of enrollment) (diversity index 19/100).
No Advanced Placement courses are reported for this campus in the federal data.
Counselor coverage runs a bit thin, about 308 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 42.2% 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 Jr High School (137 students) alongside Tri-City 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
How Tri-City High School compares
Tri-City 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 | 12.8:1 | ▼ 9% | 14:1 | 15.7:1 |
| Enrollment | 154 | top 89% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.8:1
Leaner classes than 68% of US schools, among the more generously staffed nationally.
154
Bigger than 15% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Staffing depth
12.8:1
students per teacher
- 9% below state mean
Top 39% in Illinois - lower ratio than 61% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
42.2%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$11,875
per pupil, district-wide
- below Illinois avg of $17,042
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.5 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 14 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 9.1 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
White 89.6%
Two or More 5.2%
Hispanic or Latino 3.2%
African American 1.3%
Asian 0.6%
Largest group: White at 89.6% of enrollment.
Student-body diversity index 19.3/100
Simpson diversity index - at 19.3, Tri-City High School is less mixed than the Illinois school average of 38.9.
Programs
AP program Not offered
Funding & spending
District-wide per-pupil expenditure for Tri City Cusd 1, which includes Tri-City High School.
$11,875
Per student
-30%
vs Illinois
Avg $17,042
-28%
vs U.S.
Avg $16,593
Revenue mix
Local 56.7%
State 32.5%
Federal 10.8%
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 Tri-City High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Tri-City Elem School | Larger | No free-lunch data | Similar S:T ratio |
| Tri-City Jr High School | Similar size | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Tri-City High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 273
- Students per teacher
- 13:1
- Resource Index
- 54/100
- Enrollment
- 137
- Students per teacher
- 15.2:1
- Resource Index
- 33/100
Similar high schools statewide
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.
Similar enrollment (~154 students)
Similar student-teacher ratio (~12.8:1)
Next steps
Verify locally before acting on Tri-City High School's federal record.
- Compare Tri-City High School against another school. Compare schools
- Tri City Cusd 1'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 Tri-City High School
How many students attend Tri-City High School?
Tri-City High School has 154 students enrolled. It is a high school in Buffalo, IL.
What is the student-teacher ratio at Tri-City High School?
The student-teacher ratio at Tri-City High School is 12.8:1, which is 9% lower than the Illinois average of 14:1 and 18% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Tri-City High School?
The largest demographic group at Tri-City High School is White at 89.6% of enrollment, in Buffalo, IL.
What is the Resource Investment Index for Tri-City High School?
Tri-City High School has a Resource Investment Index of 25/100 (lower reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Tri-City High School rank among public schools in Buffalo?
By Resource Investment Index, Tri-City High School ranks #3 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.
Is Tri-City High School a good school?
Tri-City High School earns 25/100 on the Resource Investment Index, with class sizes near the Illinois 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 Tri City Cusd 1?
Besides Tri-City High School, Tri City Cusd 1 also operates Tri-City Elem School (273 students) and Tri-City Jr High School (137 students). See the Tri City Cusd 1 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.