Enrollment
429
Connecticut · 2024-25 NCES data
Other / mixed grade configuration · Stonington, CT
Deans Mill School
Federal NCES profile for Deans Mill School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
2024-25 NCES dataOther / mixed grade configurationNCES 090438000876
👥 S:T ratio 58
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 82
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Deans Mill School earns 43/100 on the Resource Investment Index, with class sizes smaller than 72% of Connecticut schools. It is also less racially and ethnically mixed than most Connecticut schools.
- 43
- Resource Index · Typical
- 10.5:1
- small classes for Connecticut
- 10.0%
- free-lunch eligible
- 429
- students enrolled
Deans Mill School has class sizes smaller than 72% of Connecticut schools. Computed live against every Connecticut school reporting to NCES.
School address
District: Stonington School District · Connecticut
NCES ID 090438000876 Verify on NCES CCD record →
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
10.5:1
vs 12.1:1 Connecticut avg
-13% vs state
Free-lunch eligible
10.0%
vs 36.4% Connecticut avg
-73% vs state
Student-teacher ratio in context
How Deans Mill School compares with Connecticut and U.S. medians
What stands out at Deans Mill School
Deans Mill School is a lower-poverty, mid-sized combined-grade school in Stonington, Connecticut, enrolling 429 students.
Class sizes run a bit leaner than typical: 10.5:1 puts it in the smaller third of Connecticut schools by student-teacher ratio.
Comparatively few students face economic hardship here, 10.0% free-meal eligibility runs 73% below the Connecticut average.
With 429 students, its enrollment sits close to the Connecticut median campus size.
Its Resource Investment Index sits near the middle of the pack among 1,003 scored Connecticut schools.
Among 257 similarly sized, similarly resourced-need Connecticut schools statewide, it ranks #238, in the lower tier once campus size and economic need are matched.
Its student body is predominantly White (88% of enrollment), among the less diverse in the state (diversity index 23/100).
Counselor access is stretched at roughly 858 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 7.2% of students were chronically absent, below the typical post-pandemic national figure.
Stonington School District also operates Stonington High School (543 students) and Stonington Middle School (366 students) alongside Deans 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 Deans Mill School compares
Deans 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 | 10.5:1 | ▼ 13% | 12.1:1 | 15.7:1 |
| Free-lunch eligible | 10.0% | ▼ 73% | 36.4% | 51.7% |
| Enrollment | 429 | top 46% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.5:1
Leaner classes than 86% of US schools, among the more generously staffed nationally.
429
Bigger than 52% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
10.0%
free-lunch eligible
- 73% 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
10.5:1
students per teacher
- 13% below state mean
Top 28% in Connecticut - lower ratio than 72% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
7.2%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$25,153
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
Counselors0.5 FTE
Student-support staffing from the Civil Rights Data Collection.
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 87.6%
Hispanic or Latino 6.3%
Two or More 5.1%
Asian 0.9%
Largest group: White at 87.6% of enrollment.
Student-body diversity index 22.6/100
Simpson diversity index - at 22.6, Deans Mill School is less mixed than the Connecticut school average of 50.5.
Programs
Funding & spending
District-wide per-pupil expenditure for Stonington School District, which includes Deans Mill School.
$25,153
Per student
+5%
vs Connecticut
Avg $23,870
+52%
vs U.S.
Avg $16,593
Revenue mix
Local 78.2%
State 16.4%
Federal 5.4%
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 Deans Mill School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Stonington High School | Larger | Similar economic need | Similar S:T ratio |
| Stonington Middle School | Similar size | Higher economic need | Lower S:T ratio |
| West Vine Street School | Similar size | Higher economic need | Lower S:T ratio |
Comparisons are relative to Deans Mill School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 543
- Students per teacher
- 10.6:1
- Resource Index
- 47/100
- Enrollment
- 366
- Students per teacher
- 6.8:1
- Resource Index
- 55/100
- Enrollment
- 342
- Students per teacher
- 8.6:1
- Resource Index
- 52/100
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 (~429 students)
Next steps
Verify locally before acting on Deans Mill School's federal record.
- Compare Deans Mill School against another school. Compare schools
- Stonington 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 Deans Mill School
How many students attend Deans Mill School?
Deans Mill School has 429 students enrolled. It is a public school in Stonington, CT.
What is the student-teacher ratio at Deans Mill School?
The student-teacher ratio at Deans Mill School is 10.5:1, which is 13% lower than the Connecticut average of 12.1:1 and 33% 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 Deans Mill School?
10.0% of students at Deans Mill School are eligible for free lunch, compared to the Connecticut average of 36.4%.
What is the racial and ethnic makeup of Deans Mill School?
The largest demographic group at Deans Mill School is White at 87.6% of enrollment, in Stonington, CT.
What is the Resource Investment Index for Deans Mill School?
Deans Mill School has a Resource Investment Index of 43/100 (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).
Is Deans Mill School a good school?
Deans Mill School earns 43/100 on the Resource Investment Index, with class sizes smaller than 72% of Connecticut schools. It is also less racially and ethnically mixed than most 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 Stonington School District?
Besides Deans Mill School, Stonington School District also operates Stonington High School (543 students), Stonington Middle School (366 students), and West Vine Street School (342 students). See the Stonington 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.