- Enrollment
- 552
- Students per teacher
- 14.2:1
- Resource Index
- 40/100
High school (grades 9-12) · Williamsville, IL
Williamsville High School
Federal NCES profile for Williamsville High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 39/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 174248004271
👥 S:T ratio 40
🌟 Gifted program 30
🎓 Counselors 54
📋 Attendance 32
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Williamsville High School earns 39/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also less racially and ethnically mixed than most Illinois schools.
- 39
- Resource Index · Typical
- 14.9:1
- students per teacher
- 462
- students enrolled
Williamsville High School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
School address
District: Williamsville Cusd 15 · Illinois
NCES ID 174248004271 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-18 students YoY
Williamsville High School held near 475 students from 2022-23 to 2023-24 (-18 headcount).
Teacher FTE added 31.5 → 32.8 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-18 students YoY 174248004271 · Williamsville, IL High · SMALL · TRAD
462 enr · 14.9:1 · RII 39
Nearest enrollment peer: Sherman Elem School (552 students)
Williamsville High School held near 475 students from 2022-23 to 2023-24 (-18 headcount). Teacher FTE added 31.5 → 32.8 across the same CCD years. Read with this school → · District book → · Illinois schools → · Find another →
Williamsville High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Sherman Elem S
Sherman Elem School
552 students
- This school
Williamsville High School
462 students
- Williamsville
Williamsville Jr High School
444 students
What this shows Williamsville High School reports 462 students on the CCD universe file.
How Williamsville High School compares
Williamsville 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 | 14.9:1 | ▲ 6% | 14:1 | 15.7:1 |
| Enrollment | 462 | top 35% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.9:1
Leaner classes than 48% of US schools, a middle-of-the-pack class size.
462
Bigger than 57% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Staffing depth
14.9:1
students per teacher
- 6% above state mean
Top 68% in Illinois - lower ratio than 32% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
27.3%
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
$12,503
per pupil, district-wide
- below Illinois avg of $18,196
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 231 students, the combined health-and-guidance staffing load for this school.
Discipline context
24
in-school suspensions + 4 out-of-school
Suspension rate: 5.2 per 100 students. Combined in-school and out-of-school rate: 6.1 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 93.0%
Two or More 3.7%
Hispanic or Latino 1.5%
African American 0.9%
Asian 0.9%
Largest group: White at 93.0% of enrollment.
Student-body diversity index 13.3/100
Simpson diversity index - at 13.3, Williamsville High School is less mixed than the Illinois school average of 38.9.
Programs
AP courses offered 5
District finance for Williamsville Cusd 15 reports $12,503 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Williamsville High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Sherman Elem School | Similar size | No free-lunch data | Similar S:T ratio |
| Williamsville Jr High School | Similar size | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Williamsville High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 444
- Students per teacher
- 17.1:1
- Resource Index
- 35/100
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 (~462 students)
Similar student-teacher ratio (~14.9:1)
Frequently asked questions about Williamsville High School
How many students attend Williamsville High School?
Williamsville High School has 462 students enrolled. It is a high school in Williamsville, IL. CCD year-over-year: 493 (2022-23) → 475 (2023-24), nearly flat (-18).
What is the student-teacher ratio at Williamsville High School?
The student-teacher ratio at Williamsville High School is 14.9:1, which is 6% higher than the Illinois average of 14:1 and 5% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Williamsville High School?
The largest demographic group at Williamsville High School is White at 93.0% of enrollment, in Williamsville, IL.
What is the Resource Investment Index for Williamsville High School?
Williamsville High School has a Resource Investment Index of 39/100 (typical 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).
What other schools are in Williamsville Cusd 15?
Besides Williamsville High School, Williamsville Cusd 15 also operates Sherman Elem School (552 students) and Williamsville Jr High School (444 students). See the Williamsville Cusd 15 district page for the complete list.