Enrollment
317
Connecticut · 2024-25 NCES data
Other / mixed grade configuration · Dayville, CT
Killingly Central School
Federal NCES profile for Killingly Central School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 40/100.
2024-25 NCES dataOther / mixed grade configurationNCES 090207000391
👥 S:T ratio 60
🌟 Gifted program 30
🎓 Counselors 37
📋 Attendance 35
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Killingly Central School earns 40/100 on the Resource Investment Index, with class sizes smaller than 81% of Connecticut schools.
- #1 of 3
- public schools in Dayville · Resource Index
- 40
- Resource Index · Typical
- 9.9:1
- small classes for Connecticut
- 45.5%
- free-lunch eligible
Killingly Central School has class sizes smaller than 81% of Connecticut schools. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Killingly Central School ranks #1 of 3 public schools in Dayville, CT.
School address
District: Killingly School District · Connecticut
NCES ID 090207000391 Verify on NCES CCD record →
Teachers (FTE)
32.0
Federal CCD staff survey
Students per teacher
9.9:1
vs 12.1:1 Connecticut avg
-18% vs state
Free-lunch eligible
45.5%
vs 36.4% Connecticut avg
+25% vs state
Student-teacher ratio in context
How Killingly Central School compares with Connecticut and U.S. medians
What stands out at Killingly Central School
Killingly Central School is a mid-sized combined-grade school in Dayville, Connecticut, enrolling 317 students.
Class sizes run a bit leaner than typical: 9.9:1 puts it in the smaller third of Connecticut schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 45.5% of students eligible for free meals.
Enrollment of 317 puts it in the smaller third of Connecticut schools by headcount.
Its Resource Investment Index lands in the lower third of 1,003 scored Connecticut schools.
Against 160 statewide peers matched on enrollment and economic need, it ranks mid-pack at #111.
Its student body is led by White (73%) and Hispanic or Latino (16%) (diversity index 44/100).
Counselor coverage runs a bit thin, about 317 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 26.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Killingly School District also operates Killingly High School (744 students) and Killingly Intermediate School (692 students) alongside Killingly Central 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 Killingly Central School compares
Killingly Central School on the metrics families compare, against Connecticut and U.S. means.
| Metric | This school | vs Connecticut | Connecticut avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.9:1 | ▼ 18% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 45.5% | ▲ 25% | 36.4% | 51.7% |
| Enrollment | 317 | top 72% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.9:1
Leaner classes than 89% of US schools, among the more generously staffed nationally.
317
Bigger than 35% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
45.5%
free-lunch eligible
- 25% above the Connecticut average of 36.4%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
9.9:1
students per teacher
- 18% below state mean
Top 19% in Connecticut - lower ratio than 81% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
26.2%
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
$21,358
per pupil, district-wide
- below Connecticut avg of $23,870
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 317 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.
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 72.6%
Hispanic or Latino 16.1%
Two or More 6.9%
African American 2.5%
Asian 1.3%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.3%
Largest group: White at 72.6% of enrollment.
Student-body diversity index 44.1/100
Simpson diversity index - at 44.1, Killingly Central School is less mixed than the Connecticut school average of 50.5.
Programs
Funding & spending
District-wide per-pupil expenditure for Killingly School District, which includes Killingly Central School.
$21,358
Per student
-11%
vs Connecticut
Avg $23,870
+29%
vs U.S.
Avg $16,593
Revenue mix
Local 50.5%
State 43.2%
Federal 6.2%
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 Killingly Central School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Killingly High School | Larger | Lower economic need | Similar S:T ratio |
| Killingly Intermediate School | Larger | Similar economic need | Higher S:T ratio |
| Killingly Memorial School | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Killingly Central School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 744
- Students per teacher
- 11.3:1
- Resource Index
- 26/100
- Enrollment
- 692
- Students per teacher
- 11.7:1
- Resource Index
- 31/100
- Enrollment
- 485
- Students per teacher
- 12.1:1
- Resource Index
- 33/100
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of Connecticut, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~317 students)
Similar student-teacher ratio (~9.9:1)
Next steps
Verify locally before acting on Killingly Central School's federal record.
- Compare Killingly Central School against another school. Compare schools
- Killingly School District'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 Killingly Central School
How many students attend Killingly Central School?
Killingly Central School has 317 students enrolled. It is a public school in Dayville, CT.
What is the student-teacher ratio at Killingly Central School?
The student-teacher ratio at Killingly Central School is 9.9:1, which is 18% lower than the Connecticut average of 12.1:1 and 37% 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 Central School?
45.5% of students at Killingly Central School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Killingly Central School?
The largest demographic group at Killingly Central School is White at 72.6% of enrollment, in Dayville, CT.
What is the Resource Investment Index for Killingly Central School?
Killingly Central School has a Resource Investment Index of 40/100 (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).
How does Killingly Central School rank among public schools in Dayville?
By Resource Investment Index, Killingly Central School ranks #1 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. See all public schools in Dayville on the city page.
Is Killingly Central School a good school?
Killingly Central School earns 40/100 on the Resource Investment Index, with class sizes smaller than 81% of Connecticut 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 Killingly School District?
Besides Killingly Central School, Killingly School District also operates Killingly High School (744 students), Killingly Intermediate School (692 students), and Killingly Memorial School (485 students). See the Killingly School District 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.