Enrollment
72
Illinois · 2024-25 NCES data
Other / mixed grade configuration · West Chicago, IL
Federal NCES profile for Trinity School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
The verdict
Trinity School earns 44/100 on the Resource Investment Index, with class sizes smaller than 88% of Illinois schools. It is also one of the smallest schools in Illinois.
Trinity School has class sizes smaller than 88% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Trinity School ranks #2 of 3 schools in West Chicago, IL.
NCES ID 174155006233 Verify on NCES CCD record →
Enrollment
72
Illinois · 2024-25 NCES data
Teachers (FTE)
7.0
Federal CCD staff survey
Students per teacher
10.3:1
vs 14:1 Illinois avg
-26% vs state
How Trinity School compares with Illinois and U.S. medians
Smaller classes than state median
10.3:1 - 3.7 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Trinity School is a small combined-grade school in West Chicago, Illinois, enrolling 72 students.
Classes run notably small here: at 10.3:1, Trinity School is leaner than roughly 88% of Illinois schools and 26% under the state's 14:1 norm, more adult attention per pupil than most peers.
This is a small campus: fewer students than 97% of Illinois schools, with 72 enrolled.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
The surrounding West Chicago Esd 33 spends $24,488 per pupil, 44% above the Illinois average, a better-resourced district than most.
Among West Chicago's public schools, it stands alongside Norton Creek Elementary School (479 students): Trinity School is smaller than that campus by headcount and runs leaner classes (10.3:1 vs 13.3:1).
West Chicago Esd 33 also operates Leman Middle School (1,048 students) and Gary Elementary School (425 students) alongside Trinity 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
Trinity 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 | 10.3:1 | ▼ 26% | 14:1 | 15.7:1 |
| Enrollment | 72 | top 97% | - | - |
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.
District-wide per-pupil expenditure for West Chicago Esd 33, which includes Trinity 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 |
|---|---|---|---|
| Leman Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Gary Elementary School | Larger | No free-lunch data | Higher S:T ratio |
| Wegner Elementary School | Larger | No free-lunch data | Similar S:T ratio |
| Indian Knoll Elem School | Larger | No free-lunch data | Higher S:T ratio |
| Currier Elementary School | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Trinity School's own figures; each column derives from NCES Common Core of Data.
2 comparable other schools (grades Mixed) serving the same city.
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 Trinity 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.
Trinity School has 72 students enrolled. It is a public school in West Chicago, IL.
The student-teacher ratio at Trinity School is 10.3:1, which is 26% lower than the Illinois average of 14:1 and 34% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
Trinity School has a Resource Investment Index of 44/100 (typical reported resources relative to schools nationally) based on 2 factors: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
By Resource Investment Index, Trinity School ranks #2 of 3 schools in West Chicago, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in West Chicago on the city page.
Trinity School earns 44/100 on the Resource Investment Index, with class sizes smaller than 88% of Illinois schools. It is also one of the smallest schools in Illinois. 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 Trinity School, West Chicago Esd 33 also operates Leman Middle School (1,048 students), Gary Elementary School (425 students), and Wegner Elementary School (384 students). See the West Chicago Esd 33 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, “Trinity School, West Chicago 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/trinity-school-il
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