Enrollment
330
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Glenview, IL
Federal NCES profile for Willowbrook Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 72/100.
The verdict
Willowbrook Elem School earns 72/100 on the Resource Investment Index, with class sizes smaller than 85% of Illinois schools. It is also more racially and ethnically mixed than most Illinois schools.
Willowbrook Elem School has class sizes smaller than 85% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Willowbrook Elem School ranks #1 of 5 schools in Glenview, IL.
NCES ID 172442002651 Verify on NCES CCD record →
Enrollment
330
Illinois · 2024-25 NCES data
Teachers (FTE)
31.0
Federal CCD staff survey
Students per teacher
10.6:1
vs 14:1 Illinois avg
-24% vs state
How Willowbrook Elem School compares with Illinois and U.S. medians
Smaller classes than state median
10.6:1 - 3.4 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Willowbrook Elem School is a mid-sized combined-grade school in Glenview, Illinois, enrolling 330 students.
Classes run notably small here: at 10.6:1, Willowbrook Elem School is leaner than roughly 85% of Illinois schools and 24% under the state's 14:1 norm, more adult attention per pupil than most peers.
With 330 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index outscores 100% of the 3,845 Illinois schools with a score on record, a top-tier result on this measure.
Its student body is led by White (53%) and Asian (29%), more mixed than most schools in the state (diversity index 62/100).
Attendance holds up well here: only 4.5% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Northbrook/Glenview Sd 30 spends $24,636 per pupil, 45% above the Illinois average, a better-resourced district than most.
Among Glenview's public schools, it stands alongside Henry Winkelman Elem School (677 students): Willowbrook Elem School is smaller than that campus by headcount and runs leaner classes (10.6:1 vs 12.1:1).
Northbrook/Glenview Sd 30 also operates Wescott Elementary School (469 students) and Maple School (451 students) alongside Willowbrook Elem 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
Willowbrook Elem 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 | 10.6:1 | ▼ 24% | 14:1 | 15.7:1 |
| Enrollment | 330 | top 57% | - | - |
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 53.3% of enrollment.
Simpson diversity index - at 61.9, Willowbrook Elem School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Northbrook/Glenview Sd 30, which includes Willowbrook Elem 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 |
|---|---|---|---|
| Wescott Elementary School | Larger | No free-lunch data | Similar S:T ratio |
| Maple School | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Willowbrook Elem School's own figures; each column derives from NCES Common Core of Data.
4 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 Willowbrook Elem 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.
Willowbrook Elem School has 330 students enrolled. It is a public school in Glenview, IL.
The student-teacher ratio at Willowbrook Elem School is 10.6:1, which is 24% lower than the Illinois average of 14:1 and 32% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Willowbrook Elem School is White at 53.3% of enrollment, in Glenview, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.9/100.
Willowbrook Elem School has a Resource Investment Index of 72/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Willowbrook Elem School ranks #1 of 5 schools in Glenview, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Glenview on the city page.
Willowbrook Elem School earns 72/100 on the Resource Investment Index, with class sizes smaller than 85% of Illinois schools. It is also more racially and ethnically mixed than most 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 Willowbrook Elem School, Northbrook/Glenview Sd 30 also operates Wescott Elementary School (469 students) and Maple School (451 students). See the Northbrook/Glenview Sd 30 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, “Willowbrook Elem School, Glenview 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/willowbrook-elem-school-il/
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