- Enrollment
- 1,453
- Students per teacher
- 16.5:1
- Resource Index
- 26/100
High school (grades 9-12) · Waterbury, CT
Wilby High School
Federal NCES profile for Wilby 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 090483000992
👥 S:T ratio 40
🌟 Gifted program 30
🎓 Counselors 52
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Wilby High School earns 30/100 on the Resource Investment Index, with class sizes larger than 92% of Connecticut schools. It is also one of the largest schools in Connecticut.
- #4 of 5
- high schools in Waterbury · Resource Index
- 30
- Resource Index · Lower
- 15.1:1
- large classes for Connecticut
- 84.1%
- free-lunch eligible
Wilby High School has class sizes larger than 92% of Connecticut schools. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Wilby High School ranks #4 of 5 high schools in Waterbury, CT.
School address
District: Waterbury School District · Connecticut
NCES ID 090483000992 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+21 students YoY
Wilby High School held near 1,178 students from 2022-23 to 2023-24 (+21 headcount).
Teacher FTE added 79.0 → 91.4 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+21 students YoY 090483000992 · Waterbury, CT High · MID · TRAD
1,196 enr · 15.1:1 · 84.1% lunch · RII 30
Nearest enrollment peer: Crosby High School (1,453 students)
Wilby High School held near 1,178 students from 2022-23 to 2023-24 (+21 headcount). Teacher FTE added 79.0 → 91.4 across the same CCD years. Read with this school → · District book → · Connecticut schools → · Find another →
Wilby High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Crosby High Sc
Crosby High School
1,453 students
- John F. Kenned
John F. Kennedy High School
1,391 students
- This school
Wilby High School
1,196 students
- Michael F. Wal
Michael F. Wallace Middle School
1,059 students
- West Side Midd
West Side Middle School
848 students
- Waterbury Arts
Waterbury Arts Magnet School
820 students
What this shows Wilby High School reports 1,196 students on the CCD universe file.
How Wilby High School compares
Wilby High School held steady on CCD headcount: ratios and free-lunch share vs Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.1:1 | ▲ 25% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 84.1% | ▲ 131% | 36.4% | 51.7% |
| Enrollment | 1,196 | top 4% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.1:1
Leaner classes than 46% of US schools, a middle-of-the-pack class size.
1,196
Bigger than 94% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
84.1%
free-lunch eligible
- 131% above the Connecticut average of 36.4%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
15.1:1
students per teacher
- 25% above state mean
Top 92% in Connecticut - lower ratio than 8% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
62.0%
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
$20,129
per pupil, district-wide
- below Connecticut avg of $24,680
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors5.0 FTE
Per 239 students, the combined health-and-guidance staffing load for this school.
Discipline context
222
in-school suspensions + 251 out-of-school
Suspension rate: 18.6 per 100 students. Combined in-school and out-of-school rate: 39.5 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
Student demographics
Hispanic or Latino 63.9%
African American 25.7%
White 5.0%
Two or More 4.6%
Asian 0.6%
American Indian / Alaska Native 0.3%
Largest group: Hispanic or Latino at 63.9% of enrollment.
Student-body diversity index 52.1/100
Simpson diversity index - at 52.1, Wilby High School is about as mixed as the Connecticut school average of 50.5.
Programs
AP courses offered 6
District finance for Waterbury School District reports $20,129 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Wilby High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Crosby High School | Similar size | Similar economic need | Similar S:T ratio |
| John F. Kennedy High School | Similar size | Similar economic need | Similar S:T ratio |
| Michael F. Wallace Middle School | Similar size | Similar economic need | Lower S:T ratio |
| West Side Middle School | Smaller | Similar economic need | Lower S:T ratio |
| Waterbury Arts Magnet School | Smaller | Lower economic need | Higher S:T ratio |
Comparisons are relative to Wilby High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,391
- Students per teacher
- 15.5:1
- Resource Index
- 35/100
- Enrollment
- 1,059
- Students per teacher
- 11.5:1
- Resource Index
- 38/100
- Enrollment
- 848
- Students per teacher
- 10.2:1
- Resource Index
- 37/100
- Enrollment
- 820
- Students per teacher
- 16.7:1
- Resource Index
- 39/100
Similar high schools in Waterbury
4 comparable high schools (grades 9-12) serving the same city.
Crosby High School
Standard public school
1,453 students 16.5:1 students per teacher
John F. Kennedy High School
Standard public school
1,391 students 15.5:1 students per teacher
W. F. Kaynor Technical High School
Vocational / career-technical school
831 students 13.2:1 students per teacher
Waterbury Career Academy
Standard public school
709 students 13.9:1 students per teacher
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 (~1,196 students)
Frequently asked questions about Wilby High School
How many students attend Wilby High School?
Wilby High School has 1,196 students enrolled. It is a high school in Waterbury, CT. CCD year-over-year: 1,157 (2022-23) → 1,178 (2023-24), nearly flat (+21).
What is the student-teacher ratio at Wilby High School?
The student-teacher ratio at Wilby High School is 15.1:1, which is 25% higher than the Connecticut average of 12.1:1 and 4% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Wilby High School?
84.1% of students at Wilby High School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Wilby High School?
The largest demographic group at Wilby High School is Hispanic or Latino at 63.9% of enrollment, in Waterbury, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.1/100.
What is the Resource Investment Index for Wilby High School?
Wilby 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 Wilby High School rank among high schools in Waterbury?
By Resource Investment Index, Wilby High School ranks #4 of 5 high schools in Waterbury, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Waterbury on the city page.
What other schools are in Waterbury School District?
Besides Wilby High School, Waterbury School District also operates Crosby High School (1,453 students), John F. Kennedy High School (1,391 students), and Michael F. Wallace Middle School (1,059 students). See the Waterbury School District district page for the complete list.