Enrollment
831
Connecticut · 2024-25 NCES data
Elementary school (grades K-5) · Wilton, CT
Cider Mill School
Federal NCES profile for Cider Mill School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
2024-25 NCES dataElementary school (grades K-5)NCES 090513001071
👥 S:T ratio 49
🌟 Gifted program 30
🎓 Counselors 17
📋 Attendance 92
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Cider Mill School earns 47/100 on the Resource Investment Index, with class sizes larger than 72% of Connecticut schools.
- #3 of 4
- public schools in Wilton · Resource Index
- 47
- Resource Index · Typical
- 12.8:1
- large classes for Connecticut
- 6.0%
- free-lunch eligible
Cider Mill School has class sizes larger than 72% of Connecticut schools. Computed live against every Connecticut school reporting to NCES.
By Resource Investment Index, Cider Mill School ranks #3 of 4 public schools in Wilton, CT.
School address
District: Wilton School District · Connecticut
NCES ID 090513001071 Verify on NCES CCD record →
Teachers (FTE)
65.0
Federal CCD staff survey
Students per teacher
12.8:1
vs 12.1:1 Connecticut avg
+6% vs state
Free-lunch eligible
6.0%
vs 36.4% Connecticut avg
-84% vs state
Student-teacher ratio in context
How Cider Mill School compares with Connecticut and U.S. medians
What stands out at Cider Mill School
Cider Mill School is a lower-poverty, large elementary school in Wilton, Connecticut, enrolling 831 students.
Class loads run somewhat heavier than typical: 12.8:1 puts it in the larger third of Connecticut schools by student-teacher ratio.
Comparatively few students face economic hardship here, 6.0% free-meal eligibility runs 84% below the Connecticut average.
By headcount it is one of the larger campuses in Connecticut, bigger than 90% of state schools at 831 students.
Its Resource Investment Index sits near the middle of the pack among 1,003 scored Connecticut schools.
Among 87 similarly sized, similarly resourced-need Connecticut schools statewide, it ranks #70, in the lower tier once campus size and economic need are matched.
Its student body is led by White (73%) and Asian (12%) (diversity index 44/100).
Counselor access is stretched at roughly 416 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 3.2% of students were chronically absent, below the typical post-pandemic national figure.
Wilton School District also operates Wilton High School (1,202 students) and Middlebrook School (852 students) alongside Cider Mill 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 Cider Mill School compares
Cider Mill 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 | 12.8:1 | ▲ 6% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 6.0% | ▼ 84% | 36.4% | 51.7% |
| Enrollment | 831 | top 10% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.8:1
Leaner classes than 68% of US schools, among the more generously staffed nationally.
831
Bigger than 87% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
6.0%
free-lunch eligible
- 84% below the Connecticut average of 36.4%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
12.8:1
students per teacher
- 6% above state mean
Top 72% in Connecticut - lower ratio than 28% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
3.2%
chronically absent (missed 10%+ of school days)
Below 5%, comfortably under the pre-pandemic national baseline for chronic absenteeism.
Funding equity
$26,789
per pupil, district-wide
- above 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
Counselors2.0 FTE
Per 416 students, the combined health-and-guidance staffing load for this school.
Discipline context
7
in-school suspensions + 0 out-of-school
Suspension rate: 0.8 per 100 students. Combined in-school and out-of-school rate: 0.8 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 73.3%
Asian 12.2%
Hispanic or Latino 7.0%
Two or More 6.5%
African American 1.1%
Largest group: White at 73.3% of enrollment.
Student-body diversity index 43.9/100
Simpson diversity index - at 43.9, Cider Mill School is less mixed than the Connecticut school average of 50.5.
Programs
Funding & spending
District-wide per-pupil expenditure for Wilton School District, which includes Cider Mill School.
$26,789
Per student
+12%
vs Connecticut
Avg $23,870
+61%
vs U.S.
Avg $16,593
Revenue mix
Local 82.9%
State 15.4%
Federal 1.7%
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 Cider Mill School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Wilton High School | Larger | Similar economic need | Lower S:T ratio |
| Middlebrook School | Similar size | Similar economic need | Lower S:T ratio |
| Miller-Driscoll School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Cider Mill School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,202
- Students per teacher
- 10.8:1
- Resource Index
- 61/100
- Enrollment
- 852
- Students per teacher
- 9.9:1
- Resource Index
- 54/100
- Enrollment
- 845
- Students per teacher
- 14.1:1
- Resource Index
- 40/100
Similar elementary 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 (~831 students)
Similar student-teacher ratio (~12.8:1)
Next steps
Verify locally before acting on Cider Mill School's federal record.
- Compare Cider Mill School against another school. Compare schools
- Wilton 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 Cider Mill School
How many students attend Cider Mill School?
Cider Mill School has 831 students enrolled. It is an elementary school in Wilton, CT.
What is the student-teacher ratio at Cider Mill School?
The student-teacher ratio at Cider Mill School is 12.8:1, which is 6% higher than the Connecticut average of 12.1:1 and 18% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Cider Mill School?
6.0% of students at Cider Mill School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Cider Mill School?
The largest demographic group at Cider Mill School is White at 73.3% of enrollment, in Wilton, CT.
What is the Resource Investment Index for Cider Mill School?
Cider Mill School has a Resource Investment Index of 47/100 (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 Cider Mill School rank among public schools in Wilton?
By Resource Investment Index, Cider Mill School ranks #3 of 4 public schools in Wilton, 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 Wilton on the city page.
Is Cider Mill School a good school?
Cider Mill School earns 47/100 on the Resource Investment Index, with class sizes larger than 72% 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 Wilton School District?
Besides Cider Mill School, Wilton School District also operates Wilton High School (1,202 students), Middlebrook School (852 students), and Miller-Driscoll School (845 students). See the Wilton 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.