- Enrollment
- 1,847
- Students per teacher
- 15.4:1
- Resource Index
- 29/100
High school (grades 9-12) · Villa Park, IL
Willowbrook High School
Federal NCES profile for Willowbrook High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 171394001738
👥 S:T ratio 33
🌟 Gifted program 30
🎓 Counselors 43
📋 Attendance 12
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Willowbrook High School earns 30/100 on the Resource Investment Index, with class sizes larger than 85% of Illinois schools. It is also one of the largest schools in Illinois.
- #6 of 7
- public schools in Villa Park · Resource Index
- 30
- Resource Index · Lower
- 16.7:1
- large classes for Illinois
- 1,983
- students enrolled
Willowbrook High School has class sizes larger than 85% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Willowbrook High School ranks #6 of 7 public schools in Villa Park, IL.
School address
District: Dupage Hsd 88 · Illinois
NCES ID 171394001738 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-40 students YoY
Willowbrook High School held near 1,952 students from 2022-23 to 2023-24 (-40 headcount).
Teacher FTE lost 119.7 → 116.3 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-40 students YoY 171394001738 · Villa Park, IL High · MID · TRAD
1,983 enr · 16.7:1 · RII 30
Nearest enrollment peer: Addison Trail High School (1,847 students)
Willowbrook High School held near 1,952 students from 2022-23 to 2023-24 (-40 headcount). Teacher FTE lost 119.7 → 116.3 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
How Willowbrook High School compares
Willowbrook High School held steady on CCD headcount: ratios and free-lunch share vs Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.7:1 | ▲ 19% | 14:1 | 15.7:1 |
| Enrollment | 1,983 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.7:1
Leaner classes than 33% of US schools, heavier class loads than most.
1,983
Bigger than 98% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Staffing depth
16.7:1
students per teacher
- 19% above state mean
Top 85% in Illinois - lower ratio than 15% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
35.4%
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
$23,109
per pupil, district-wide
- above Illinois avg of $18,196
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors7.0 FTE
Per 283 students, the combined health-and-guidance staffing load for this school.
Discipline context
393
in-school suspensions + 162 out-of-school
Suspension rate: 19.8 per 100 students. Combined in-school and out-of-school rate: 28.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 40.5%
Hispanic or Latino 38.4%
African American 8.6%
Asian 8.3%
Two or More 4.0%
American Indian / Alaska Native 0.1%
Largest group: White at 40.5% of enrollment.
Student-body diversity index 67.3/100
Simpson diversity index - at 67.3, Willowbrook High School is more mixed than the Illinois school average of 38.9.
Programs
AP courses offered 22
District finance for Dupage Hsd 88 reports $23,109 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Willowbrook High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Addison Trail High School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Willowbrook High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~1,983 students)
Frequently asked questions about Willowbrook High School
How many students attend Willowbrook High School?
Willowbrook High School has 1,983 students enrolled. It is a high school in Villa Park, IL. CCD year-over-year: 1,992 (2022-23) → 1,952 (2023-24), nearly flat (-40).
What is the student-teacher ratio at Willowbrook High School?
The student-teacher ratio at Willowbrook High School is 16.7:1, which is 19% higher than the Illinois average of 14:1 and 6% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Willowbrook High School?
The largest demographic group at Willowbrook High School is White at 40.5% of enrollment, in Villa Park, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.3/100.
What is the Resource Investment Index for Willowbrook High School?
Willowbrook High School has a Resource Investment Index of 30/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Willowbrook High School rank among public schools in Villa Park?
By Resource Investment Index, Willowbrook High School ranks #6 of 7 public schools in Villa Park, 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 Villa Park on the city page.
What other schools are in Dupage Hsd 88?
Besides Willowbrook High School, Dupage Hsd 88 also operates Addison Trail High School (1,847 students). See the Dupage Hsd 88 district page for the complete list.