A
Very Good
90/100

Deans Mill School

📚 Pre-K – 05 🏫 Elementary
📍 35 Deans Mill Rd., Stonington, CT 06378
Overall
A
90/100 · the blend of everything below
Achievement
A+
2.4 grade levels above the U.S. average · 91st percentile in Connecticut
Growth
B+
Students gain 1.14 grade levels a year (U.S. average 1.0) · 72nd percentile
Resources
A+
Class size, funding, school size and type

📚 Top 15% in Connecticut for achievement

Each score is graded separately against Connecticut schools. A school can be strong at moving students forward (growth) without having the highest test scores, or the reverse. How we score schools

90
Repit Score
out of 100
423
Students
enrolled
11.1:1
Student:Teacher
ratio
$28K
Per Student
spending

What Goes Into This Rating

FactorWeightScoreBasis
📚 Achievement (reading & math, grades 3–8)40%91/1002.4 grade levels above the national average, 2022–25 (Stanford SEDA)
📈 Growth (how fast students learn)45%72/100Students gain 1.14 grade levels per school year in 2022–25 (national average ≈ 1.0); 72nd percentile in Connecticut (recent period weighted 70%)
🏫 Resources (class size, funding, size, type)15%100/100Inputs from NCES school and district data

Students served: 13% students eligible for free or reduced-price lunch. Compared with Connecticut schools serving a similar share of low-income students, this school’s reading and math results are +8 points better than expected. (Context only; not part of the score.)

The overall Repit Score ranks this blend against every rated school in Connecticut. Schools are compared within their state because each state sets its own tests and proficiency bar. How we rate schools

Test Scores & Graduation

📖 Reading proficiency77% (+19 pts vs. state avg 58%)
Students scoring proficient on the state test, 2018–19
➗ Math proficiency77% (+29 pts vs. state avg 48%)
Students scoring proficient on the state test, 2018–19

Source: U.S. Department of Education EDFacts via the Urban Institute Education Data Portal. Federal reporting rounds small schools to ranges; we show the midpoint. Proficiency standards differ by state, so compare schools within the same state.

How Student Groups Do Here

Share of each group of students scoring proficient on the Connecticut state test (2018–19), compared with the same group of students across the state. Differences between groups are shown as reported; they reflect many factors inside and outside school.

StudentsReadingMathvs. same group statewideRank in state for this group
White82%82%reading +12 pts, math +15 pts88th percentile (list)
Low-income65%65%reading +25 pts, math +31 pts92nd percentile (list)

Source: U.S. Department of Education EDFacts via the Urban Institute. Groups with fewer than 20 tested students are not shown. Results are achievement (proficiency), not growth; growth by group is not published for individual schools.

School Information

Address 35 Deans Mill Rd.
City Stonington
ZIP Code 06378
District 0904380
NCES School ID 090438000876
Data Year 2024-25

Community Context for 06378

Understanding the community around Deans Mill School helps evaluate the school environment and neighborhood.

💰 Income & Economy

Median Household Income $113,482
Per Capita Income $79,594
Poverty Rate 1.3%
Households Earning $100K+ 57.8%

🎓 Education Level

Bachelor's Degree or Higher 55.7%
High School or Higher 99.0%

🏠 Housing

Median Home Value $522,200
Median Rent $1,546
Owner-Occupied 74.4%
Renter-Occupied 25.6%
View full data for ZIP 06378 →

Thinking about moving into this school’s area? See what homes and rents actually cost in ZIP 06378 — values, rent, and how it compares to nearby ZIPs. Free, no signup. See 06378 housing costs →

Student Demographics

Enrollment and demographic breakdown for Deans Mill School.

👫 Gender Distribution

Male 50.8%
Female 49.2%

🌎 Race & Ethnicity

White 87.2%
Hispanic/Latino 6.6%
Two or More Races 5.0%
Asian 1.0%
American Indian 0.2%

📋 Enrollment Summary

Total Enrollment 423
Teachers (FTE) 38.0
Student:Teacher Ratio 11.1:1

Frequently Asked Questions

What is the Repit School Score for Deans Mill School?
Deans Mill School has a Repit School Score of 90 out of 100, earning a grade of A. The score is based mainly on reading and math proficiency compared with other schools in the state, with class size and funding counting for a smaller share.
How many students attend Deans Mill School?
Deans Mill School has 423 students enrolled for the 2024-25 school year. The student-to-teacher ratio is 11.1:1.
What grades does Deans Mill School serve?
Deans Mill School serves grades Pre-K – 05 and is classified as a Elementary. This is a public school.
How much funding does Deans Mill School receive per student?
Deans Mill School receives $28,433 in per-pupil spending from its district. This is above the national average.
🏠 Rental Market Around Deans Mill School in 06378 ▼
Avg Home Value
$799,526
Avg Monthly Rent
$3,553
1-Year Change
+9.7%
% Renters
25.6%

About Repit School Scores

Parents choosing a school deserve to see what it actually delivers. Since October 2026 the Repit School Score is built mainly on results:

  • Academics (largest share) — the share of students scoring proficient in reading and math on the state test, ranked against schools of the same level in the same state.
  • Graduation (high schools) — the four-year adjusted cohort graduation rate. Only regular diplomas count; GEDs and certificates of attendance do not.
  • Resources (smaller share) — class size, per-pupil funding, school size and type.

Scores compare schools within their own state, because every state writes its own tests and sets its own proficiency bar. Full methodology

Data sources: NCES CCD 2024-25, U.S. Dept. of Education EDFacts (test results & graduation) | Last updated: October 2026