Enrollment
444
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Williamsville, IL
Williamsville Jr High School
Federal NCES profile for Williamsville Jr High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 35/100.
2024-25 NCES dataElementary school (grades K-5)NCES 174248004272
👥 S:T ratio 32
🌟 Gifted program 30
🎓 Counselors 11
📋 Attendance 69
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Williamsville Jr High School earns 35/100 on the Resource Investment Index, with class sizes larger than 87% of Illinois schools.
- 35
- Resource Index · Typical
- 17.1:1
- large classes for Illinois
- 444
- students enrolled
Williamsville Jr High School has class sizes larger than 87% of Illinois schools. Computed live against every Illinois school reporting to NCES.
School address
District: Williamsville Cusd 15 · Illinois
NCES ID 174248004272 Verify on NCES CCD record →
Teachers (FTE)
26.0
Federal CCD staff survey
Students per teacher
17.1:1
vs 14:1 Illinois avg
+22% vs state
Student-teacher ratio in context
How Williamsville Jr High School compares with Illinois and U.S. medians
What stands out at Williamsville Jr High School
Williamsville Jr High School is a mid-sized elementary school in Williamsville, Illinois, enrolling 444 students.
Class loads run heavy: 17.1:1 is larger than about 87% of Illinois schools and 22% above the 14:1 state mean, so each teacher carries more students than is typical.
With 444 students, its enrollment sits close to the Illinois median campus size.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is predominantly White (93% of enrollment) (diversity index 14/100).
Counselor access is stretched at roughly 444 students per counselor, well above the ASCA-recommended 250:1 ceiling.
12.6% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Williamsville Cusd 15 spends $10,503 per pupil, 38% below the Illinois average, a leaner-resourced district than most.
Williamsville Cusd 15 also operates Sherman Elem School (552 students) and Williamsville High School (462 students) alongside Williamsville Jr High 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
How Williamsville Jr High School compares
Williamsville Jr High 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 | 17.1:1 | ▲ 22% | 14:1 | 15.7:1 |
| Enrollment | 444 | top 38% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.1:1
Leaner classes than 30% of US schools, heavier class loads than most.
444
Bigger than 54% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
17.1:1
students per teacher
- 22% above state mean
Top 87% in Illinois - lower ratio than 13% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
12.6%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$10,503
per pupil, district-wide
- below Illinois avg of $17,042
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 444 students, the combined health-and-guidance staffing load for this school.
Discipline context
12
in-school suspensions + 1 out-of-school
Suspension rate: 2.7 per 100 students. Combined in-school and out-of-school rate: 2.9 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
White 92.6%
Two or More 3.8%
Hispanic or Latino 2.0%
African American 1.4%
Asian 0.2%
Largest group: White at 92.6% of enrollment.
Student-body diversity index 14.0/100
Simpson diversity index - at 14.0, Williamsville Jr High School is less mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Williamsville Cusd 15, which includes Williamsville Jr High School.
$10,503
Per student
-38%
vs Illinois
Avg $17,042
-37%
vs U.S.
Avg $16,593
Revenue mix
Local 53.5%
State 37.8%
Federal 8.7%
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.
How Williamsville Jr High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sherman Elem School | Similar size | No free-lunch data | Lower S:T ratio |
| Williamsville High School | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Williamsville Jr High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 552
- Students per teacher
- 14.2:1
- Resource Index
- 40/100
- Enrollment
- 462
- Students per teacher
- 14.9:1
- Resource Index
- 39/100
Similar elementary schools statewide
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.
Similar enrollment (~444 students)
Next steps
Verify locally before acting on Williamsville Jr High School's federal record.
- Compare Williamsville Jr High School against another school. Compare schools
- Williamsville Cusd 15's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Williamsville Jr High School
How many students attend Williamsville Jr High School?
Williamsville Jr High School has 444 students enrolled. It is an elementary school in Williamsville, IL.
What is the student-teacher ratio at Williamsville Jr High School?
The student-teacher ratio at Williamsville Jr High School is 17.1:1, which is 22% higher than the Illinois average of 14:1 and 9% higher than the national average of 15.7:1.
What is the racial and ethnic makeup of Williamsville Jr High School?
The largest demographic group at Williamsville Jr High School is White at 92.6% of enrollment, in Williamsville, IL.
What is the Resource Investment Index for Williamsville Jr High School?
Williamsville Jr High School has a Resource Investment Index of 35/100 (typical 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).
Is Williamsville Jr High School a good school?
Williamsville Jr High School earns 35/100 on the Resource Investment Index, with class sizes larger than 87% 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.
What other schools are in Williamsville Cusd 15?
Besides Williamsville Jr High School, Williamsville Cusd 15 also operates Sherman Elem School (552 students) and Williamsville High School (462 students). See the Williamsville Cusd 15 district page for the complete list.
Related tools
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.