Enrollment
556
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Bethalto, IL
Federal NCES profile for Wilbur Trimpe Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 26/100.
The verdict
Wilbur Trimpe Middle School earns 26/100 on the Resource Investment Index, with class sizes larger than 74% of Illinois schools.
Wilbur Trimpe Middle School has class sizes larger than 74% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Wilbur Trimpe Middle School ranks #4 of 4 public schools in Bethalto, IL.
NCES ID 170612000302 Verify on NCES CCD record →
Enrollment
556
Illinois · 2024-25 NCES data
Teachers (FTE)
36.0
Federal CCD staff survey
Students per teacher
15.4:1
vs 14:1 Illinois avg
+10% vs state
How Wilbur Trimpe Middle School compares with Illinois and U.S. medians
Slightly above state median
15.4:1 - 1.4 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Wilbur Trimpe Middle School is a mid-sized middle school in Bethalto, Illinois, enrolling 556 students.
Class loads run somewhat heavier than typical: 15.4:1 puts it in the larger third of Illinois schools by student-teacher ratio.
Enrollment of 556 puts it in the larger 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 (87% of enrollment) (diversity index 23/100).
Counselor access is stretched at roughly 556 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 26.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 15.5% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Bethalto Cusd 8 also operates Civic Memorial High School (760 students) and Bethalto East Primary School (387 students) alongside Wilbur Trimpe Middle 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
Wilbur Trimpe Middle 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 | 15.4:1 | ▲ 10% | 14:1 | 15.7:1 |
| Enrollment | 556 | top 24% | - | - |
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 87.4% of enrollment.
Simpson diversity index - at 23.1, Wilbur Trimpe Middle School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Bethalto Cusd 8, which includes Wilbur Trimpe Middle 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 |
|---|---|---|---|
| Civic Memorial High School | Larger | No free-lunch data | Similar S:T ratio |
| Bethalto East Primary School | Smaller | No free-lunch data | Similar S:T ratio |
| Meadowbrook Intermediate Sch | Smaller | No free-lunch data | Higher S:T ratio |
| Parkside Primary School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Wilbur Trimpe Middle 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 Wilbur Trimpe Middle 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.
Wilbur Trimpe Middle School has 556 students enrolled. It is a middle school in Bethalto, IL.
The student-teacher ratio at Wilbur Trimpe Middle School is 15.4:1, which is 10% higher than the Illinois average of 14:1 and 2% lower than the national average of 15.7:1.
The largest demographic group at Wilbur Trimpe Middle School is White at 87.4% of enrollment, in Bethalto, IL.
Wilbur Trimpe Middle School has a Resource Investment Index of 26/100 (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, Wilbur Trimpe Middle School ranks #4 of 4 public schools in Bethalto, 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 Bethalto on the city page.
Wilbur Trimpe Middle School earns 26/100 on the Resource Investment Index, with class sizes larger than 74% 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 Wilbur Trimpe Middle School, Bethalto Cusd 8 also operates Civic Memorial High School (760 students), Bethalto East Primary School (387 students), and Meadowbrook Intermediate Sch (344 students). See the Bethalto Cusd 8 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, “Wilbur Trimpe Middle School, Bethalto 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/wilbur-trimpe-middle-school-il/
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