Enrollment
348
Middle
DISTRICT 398 · STATE 462
SCHOOL COMMUNITY·PRAIRIE HILL CCSD 133·NCES 173255006063
Willowbrook Middle School
6605 Prairie Hill Rd, South Beloit, IL 61080 · (815) 389-3957 · Winnebago County
GRADES 05–08MIDDLE41-RURALREGULAR SCHOOL348 STUDENTS
A-
allk12 Grade
Scored higher than 81% of Illinois public middle schools
- ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Illinois public middle schools
Student : Teacher
13.9:1
25 FTE teachers
DISTRICT 13.9:1 · STATE 13.0:1
Free / Reduced Lunch
16%
55 students
DISTRICT 13% · STATE 56%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 5 | 78 | 22% |
| Grade 6 | 98 | 28% |
| Grade 7 | 81 | 23% |
| Grade 8 | 91 | 26% |
Student demographics
35%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 34% · STATE 69% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within Prairie Hill CCSD 133. Attendance zones can vary; confirm enrollment with the district.
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)English Language Arts
86.8%
IL avg 51.0% . +11.2pp since 2023
Math
55.0%
IL avg 37.9% . +3.4pp since 2023
What this means: On the IAR + ISA, Illinois's statewide test, about 87 of every 100 students at this school read and write at grade level and about 55 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores are up about 11 points since 2023, while math scores are up about 3 points.
IAR + ISA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 86.8% | 55.0% |
| 2023-24 | 75.6% | 51.6% |
% Proficient (Levels 4-5), all students and all tested grades.
Source: IAR + ISA. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
68.1%
composite math + reading, all grades
Predicted
62.4%
based on IL schools with similar FRL share
Beats by
+5.7pp
above demographic expectation
What this means: About 68% of students here test proficient in math and reading, compared with the roughly 62% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Willowbrook Middle School
Willowbrook Middle School's state test result (68.1% proficient) is higher than 1 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Willowbrook Middle School this school | 348 | 15.8% | 68.1% |
| Germantown Hills Middle School Germantown Hills | 374 | 16.8% | 79.4% |
| Pleasantdale Middle School Burr Ridge | 352 | 18.2% | 76.7% |
| Bentley Elementary School New Lenox | 380 | 16.8% | 68.3% |
| Rochester Intermediate School Rochester | 394 | 15.2% | 46.4% |
| St Joseph Middle School Saint Joseph | 325 | 18.8% | 70.3% |
Matched among Illinois middle schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Willowbrook Middle School ranks
Among middle schools| Measure | This school | In Illinois | In Winnebago County |
|---|---|---|---|
| State test proficiency ranked highest first | 68.1% | #41 of 578 | #2 of 15 |
| Math proficiency ranked highest first | 55.0% | #108 of 640 ▼ 40 | #2 of 15 no change |
| Reading proficiency ranked highest first | 86.8% | #29 of 640 ▲ 28 | #2 of 15 ▲ 1 |
| Enrollment ranked largest first | 348 | #411 of 691 | #11 of 16 |
| Students per teacher ranked fewest first | 13.9:1 | #378 of 558 | #3 of 12 |
| Diversity index ranked most diverse first | 35.4% | #366 of 560 | #11 of 13 |
| Free and reduced lunch ranked highest share first | 15.8% | #556 of 581 | #15 of 15 |
| Enrollment change since 2017-18 ranked fastest growth first | +6.7% | #72 of 127 | #4 of 6 |
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
348
+43 (+14%) vs 2020
0% since 2010-11, when it was 349
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 348 | 25 | 13.9:1 | 16% (55) |
| 2023-24 | 320 | 22.3 | 14.3:1 | 18% (56) |
| 2022-23 | 296 | 24.4 | 12.1:1 | 20% (58) |
| 2020-21 | 305 | N/A | N/A | N/A |
| 2017-18 | 326 | 21.9 | 14.9:1 | 17% (56) |
| 2015-16 | 369 | 23 | 16.0:1 | 1% (3) |
| 2010-11 | 349 | 21 | 16.6:1 | 14% (50) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Willowbrook Middle School.
Since 2017-18: students up 7% (326 to 348); teachers up 14% (21.9 to 25).
About Willowbrook Middle School
Willowbrook Middle School is one of the public schools in South Beloit, Illinois. It is a small middle school. Total enrollment is 348 students, and the grades served are 5 through 8. That is 25% below the average of about 462 students for middle schools in Illinois.
Prairie Hill CCSD 133 (2 schools, 795 students) runs Willowbrook Middle School.
Federal enrollment data show Willowbrook Middle School is 80% White. Other groups include 9% Hispanic, 5% multiracial, 3% Black, and 3% Asian. The county population is about 66% White. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 35%.
There are about 13.9 students for every full-time-equivalent teacher at Willowbrook Middle School, which has 25. Middle schools in Illinois have an average ratio of 13.0:1. Eligibility for free or reduced-price lunch stands at 16%. On average, public schools in Winnebago County report 61%.
Among Illinois public middle schools, Willowbrook Middle School outscored 81%, which works out to an A- on the allk12 Grade.
In Illinois, Willowbrook Middle School is in the middle band of BeatsExpectations: 68.1% actual against a predicted 62.4%.
In Winnebago County, the median household earns about $65,837 a year, the share of adults with a bachelor's degree or higher is 25%, and roughly 11% of residents are in poverty. Across Winnebago County, 94 public schools serve about 44,103 students.
Prairie Hill Elementary School sits about 0.9 miles from Willowbrook Middle School. Inside a five-mile radius, there are at least 8 other public schools. The nearest schools with test data average 46.3%, lower than Willowbrook Middle School's 68.1%.
NCES describes the area around Willowbrook Middle School as Rural: Fringe, meaning in rural territory close to an urban area.
From 305 students in 2020-21, enrollment increased to 348 by 2024-25.
This page is set up for the Willowbrook Middle School community to discuss open houses, carpools, and field trips. Members of the school community can share what they know.
Winnebago County at a glance
View full county profilePopulation
283,292
Census ACS
Median income
$65,837
Household, ACS
Bachelor's+
25%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
94
44,103 students
Quick facts
Related schools
Other schools in Prairie Hill CCSD 133
- Prairie Hill Elementary SchoolElementary · 447 students
Other schools in South Beloit
- Prairie Hill Elementary SchoolElementary · 447 students
- South Beloit Sr High SchoolHigh · 254 students
- Riverview Elementary SchoolElementary · 199 students
- Clark Elementary SchoolElementary · 185 students
- Blackhawk Elementary SchoolMiddle · 139 students
- South Beloit Jr High SchoolMiddle · 118 students
Other Willowbrook Middle schools
One other US public school is named Willowbrook Middle. Willowbrook Middle School is the largest of the 2.
- Willowbrook MiddleCompton, CA · 304 students
Nearby schools
- Prairie Hill Elementary School0.9 mi · 447
- Ledgewood Elementary School2.5 mi · 375
- Stone Creek School2.6 mi · 360
- Roscoe Middle School2.7 mi · 596
- Clark Elementary School2.8 mi · 185
- South Beloit Sr High School2.9 mi · 254
Frequently asked questions
About Willowbrook Middle SchoolHow large is Willowbrook Middle School?
Willowbrook Middle School enrolls approximately 348 students in grades 05-08.
What grades does Willowbrook Middle School serve?
Willowbrook Middle School serves grades 05-08.
What is the student-teacher ratio at Willowbrook Middle School?
The student-to-teacher ratio at Willowbrook Middle School is approximately 13.9:1 (25 FTE teachers).
What is the racial breakdown of students at Willowbrook Middle School?
At Willowbrook Middle School, the student body is approximately 80% White, 9% Hispanic, 3% Black, 3% Asian, 5% Two or more.
Who oversees Willowbrook Middle School?
Willowbrook Middle School is overseen by Prairie Hill CCSD 133 in Winnebago County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.