- Enrollment
- 692
- Students per teacher
- 11.7:1
- Resource Index
- 31/100
High school (grades 9-12) · Dayville, CT
Killingly High School
Federal NCES profile for Killingly High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 26/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 090207000392
👥 S:T ratio 55
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 21
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Killingly High School earns 26/100 on the Resource Investment Index, with class sizes near the Connecticut median.
- #3 of 3
- public schools in Dayville · Resource Index
- 26
- Resource Index · Lower
- 11.3:1
- students per teacher
- 34.5%
- free-lunch eligible
Killingly High School has class sizes near the Connecticut median. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Killingly High School ranks #3 of 3 public schools in Dayville, CT.
School address
District: Killingly School District · Connecticut
NCES ID 090207000392 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-26 students YoY
Killingly High School held near 762 students from 2022-23 to 2023-24 (-26 headcount).
Teacher FTE lost 66.4 → 65.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-26 students YoY 090207000392 · Dayville, CT High · MID · TRAD
744 enr · 11.3:1 · 34.5% lunch · RII 26
Nearest enrollment peer: Killingly Intermediate School (692 students)
Killingly High School held near 762 students from 2022-23 to 2023-24 (-26 headcount). Teacher FTE lost 66.4 → 65.0 across the same CCD years. Read with this school → · District book → · Connecticut schools → · Find another →
Killingly High School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Killingly High School
744 students
- Killingly Inte
Killingly Intermediate School
692 students
- Killingly Memo
Killingly Memorial School
485 students
- Killingly Cent
Killingly Central School
317 students
What this shows Killingly High School reports 744 students on the CCD universe file.
How Killingly High School compares
Killingly 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 | 11.3:1 | ▼ 7% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 34.5% | ▼ 5% | 36.4% | 51.7% |
| Enrollment | 744 | top 13% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.3:1
Leaner classes than 81% of US schools, among the more generously staffed nationally.
744
Bigger than 83% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
34.5%
free-lunch eligible
- 5% below the Connecticut average of 36.4%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
11.3:1
students per teacher
- 7% below state mean
Top 44% in Connecticut - lower ratio than 56% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
31.7%
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
$21,571
per pupil, district-wide
- below Connecticut avg of $24,680
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 744 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 76.9%
Hispanic or Latino 13.2%
Two or More 5.4%
African American 2.6%
Asian 1.9%
American Indian / Alaska Native 0.1%
Largest group: White at 76.9% of enrollment.
Student-body diversity index 38.7/100
Simpson diversity index - at 38.7, Killingly High School is less mixed than the Connecticut school average of 50.5.
Programs
AP courses offered 3
District finance for Killingly School District reports $21,571 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Killingly High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Killingly Intermediate School | Similar size | Higher economic need | Similar S:T ratio |
| Killingly Memorial School | Smaller | Higher economic need | Similar S:T ratio |
| Killingly Central School | Smaller | Higher economic need | Similar S:T ratio |
Comparisons are relative to Killingly High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 485
- Students per teacher
- 12.1:1
- Resource Index
- 33/100
- Enrollment
- 317
- Students per teacher
- 9.9:1
- Resource Index
- 40/100
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 (~744 students)
Frequently asked questions about Killingly High School
How many students attend Killingly High School?
Killingly High School has 744 students enrolled. It is a high school in Dayville, CT. CCD year-over-year: 788 (2022-23) → 762 (2023-24), nearly flat (-26).
What is the student-teacher ratio at Killingly High School?
The student-teacher ratio at Killingly High School is 11.3:1, which is 7% lower than the Connecticut average of 12.1:1 and 28% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Killingly High School?
34.5% of students at Killingly High School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Killingly High School?
The largest demographic group at Killingly High School is White at 76.9% of enrollment, in Dayville, CT.
What is the Resource Investment Index for Killingly High School?
Killingly High School has a Resource Investment Index of 26/100 (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 Killingly High School rank among public schools in Dayville?
By Resource Investment Index, Killingly High School ranks #3 of 3 public schools in Dayville, CT. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking.
What other schools are in Killingly School District?
Besides Killingly High School, Killingly School District also operates Killingly Intermediate School (692 students), Killingly Memorial School (485 students), and Killingly Central School (317 students). See the Killingly School District district page for the complete list.