Enrollment
627
Connecticut · 2024-25 NCES data
Other / mixed grade configuration · Ellington, CT
Windermere School
Federal NCES profile for Windermere School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
2024-25 NCES dataOther / mixed grade configurationNCES 090144000239
👥 S:T ratio 51
🌟 Gifted program 30
📋 Attendance 67
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Windermere School earns 49/100 on the Resource Investment Index, with class sizes near the Connecticut median.
- #4 of 5
- public schools in Ellington · Resource Index
- 49
- Resource Index · Higher
- 12.3:1
- students per teacher
- 16.9%
- free-lunch eligible
Windermere School has class sizes near the Connecticut median. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Windermere School ranks #4 of 5 public schools in Ellington, CT.
School address
District: Ellington School District · Connecticut
NCES ID 090144000239 Verify on NCES CCD record →
Teachers (FTE)
51.0
Federal CCD staff survey
Students per teacher
12.3:1
vs 12.1:1 Connecticut avg
+2% vs state
Free-lunch eligible
16.9%
vs 36.4% Connecticut avg
-54% vs state
Student-teacher ratio in context
How Windermere School compares with Connecticut and U.S. medians
What stands out at Windermere School
Windermere School is a lower-poverty, mid-sized combined-grade school in Ellington, Connecticut, enrolling 627 students.
Class loads run somewhat heavier than typical: 12.3:1 puts it in the larger third of Connecticut schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 16.9% of students eligible for free meals.
Enrollment of 627 puts it in the larger third of Connecticut schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 1,003 scored Connecticut schools.
Against 217 statewide peers matched on enrollment and economic need, it ranks mid-pack at #150.
Its student body is led by White (57%) and Asian (22%) (diversity index 61/100).
13.2% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Ellington's public schools, it stands alongside Crystal Lake School (308 students): Windermere School is larger than that campus by headcount and runs leaner classes (12.3:1 vs 13.4:1).
Ellington School District also operates Ellington High School (701 students) and Center School (445 students) alongside Windermere 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 Windermere School compares
Windermere 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 | 12.3:1 | ▲ 2% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 16.9% | ▼ 54% | 36.4% | 51.7% |
| Enrollment | 627 | top 20% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.3:1
Leaner classes than 73% of US schools, among the more generously staffed nationally.
627
Bigger than 75% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
16.9%
free-lunch eligible
- 54% 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
12.3:1
students per teacher
- 2% above state mean
Top 64% in Connecticut - lower ratio than 36% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
13.2%
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
$20,308
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
7
in-school suspensions + 2 out-of-school
Suspension rate: 1.1 per 100 students. Combined in-school and out-of-school rate: 1.4 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 57.4%
Asian 21.7%
Hispanic or Latino 10.2%
African American 5.9%
Two or More 4.5%
American Indian / Alaska Native 0.3%
Largest group: White at 57.4% of enrollment.
Student-body diversity index 60.8/100
Simpson diversity index - at 60.8, Windermere School is more mixed than the Connecticut school average of 50.5.
Programs
Funding & spending
District-wide per-pupil expenditure for Ellington School District, which includes Windermere School.
$20,308
Per student
-15%
vs Connecticut
Avg $23,870
+22%
vs U.S.
Avg $16,593
Revenue mix
Local 60.7%
State 35.1%
Federal 4.2%
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 Windermere School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Ellington High School | Similar size | Similar economic need | Lower S:T ratio |
| Center School | Smaller | Similar economic need | Similar S:T ratio |
| Ellington Middle School | Smaller | Similar economic need | Similar S:T ratio |
| Crystal Lake School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Windermere School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 701
- Students per teacher
- 10.6:1
- Resource Index
- 56/100
- Enrollment
- 445
- Students per teacher
- 13.5:1
- Resource Index
- 51/100
- Enrollment
- 393
- Students per teacher
- 11.6:1
- Resource Index
- 54/100
- Enrollment
- 308
- Students per teacher
- 13.4:1
- Resource Index
- 46/100
Similar other schools in Ellington
1 comparable other schools (grades Mixed) serving the same city.
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 (~627 students)
Next steps
Verify locally before acting on Windermere School's federal record.
- Compare Windermere School against another school. Compare schools
- Ellington 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 Windermere School
How many students attend Windermere School?
Windermere School has 627 students enrolled. It is a public school in Ellington, CT.
What is the student-teacher ratio at Windermere School?
The student-teacher ratio at Windermere School is 12.3:1, which is 2% higher than the Connecticut average of 12.1:1 and 22% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Windermere School?
16.9% of students at Windermere School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Windermere School?
The largest demographic group at Windermere School is White at 57.4% of enrollment, in Ellington, CT. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 60.8/100.
What is the Resource Investment Index for Windermere School?
Windermere School has a Resource Investment Index of 49/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Windermere School rank among public schools in Ellington?
By Resource Investment Index, Windermere School ranks #4 of 5 public schools in Ellington, 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 Ellington on the city page.
Is Windermere School a good school?
Windermere School earns 49/100 on the Resource Investment Index, with class sizes near the Connecticut median. 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 Ellington School District?
Besides Windermere School, Ellington School District also operates Ellington High School (701 students), Center School (445 students), and Ellington Middle School (393 students). See the Ellington 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.