Cos Cob’s public schools beat 85% of Connecticut districts
The public schools Cos Cob’s kids attend, from kindergarten through graduation, outperform 85% of Connecticut’s districts on state tests and graduation. Among towns with similar incomes, they sit near the middle.
What Cos Cob’s schools are like
Strong statewide, typical for its income level
Statewide, Cos Cob’s schools beat 85% of districts. Compared with the 63 towns that have similar household incomes, that drops to 52%. Some of the strong showing reflects who lives here, so families moving from a similar town shouldn’t expect a big step up. How it compares ↓
Which school depends on your street
With 11 elementary and three middle schools, the school a child attends depends on your address. Elementary grades range from C+ to A+, so it’s worth checking the specific school, not just the town. After that, everyone goes to Greenwich High School. See the path ↓
Well funded
Cos Cob spends about $31,600 per student, 22% more than the state average. Test scores ↓
Well above the state in reading and math
Reading proficiency is 73%, 23 points above the state. Math is 64%, 27 points above the state. Test scores ↓
This summary is written from the data on this page. Test scores are from 2020–21, a pandemic year, so treat small gaps with caution.
How Cos Cob compares
How the School Grade works
- Results, not inputs. Math and reading proficiency on Connecticut’s state tests against the state average, plus the four-year graduation rate. Spending and class size are shown but don’t count. Tests: 2020–21; graduation: class of 2020.
- The whole path. A town’s grade follows its kids through every district that serves it, weighted by students tested. Tests count 60%, graduation 40%.
- Graded within the state. Each state writes its own tests, so districts are compared with the rest of Connecticut only. A+ is the top 5%, A the next 10%, A− the next 10%, the B range the next 30%, the C range the next 30%, D the rest.
- What a grade can’t tell you. Test results track family income, so we also compare towns with similar incomes. Visit, ask other parents, and read neighbor reviews. It’s our own summary of U.S. Department of Education data, not an official rating.
Where will my kid go?
Pick a grade. These are the public schools that serve Cos Cob.
The district
Each district’s own page has its spending, test scores, enrollment and every school.
Well above the state in reading
Every school in Cos Cob
0 schools. Grades are based on state tests and graduation. Any other ratings are made by neighbors.
Parents talk
What Cos Cob families are saying about school.
Your answer becomes a post in Town Square.
Colleges near Cos Cob
There’s no college in Cos Cob, but 40 are within 30 miles. The closest is University of Connecticut-Stamford in Stamford, 2.7 miles away.
Straight-line distance from the center of Cos Cob. Degree-granting colleges with students on campus · College Scorecard · IPEDS. 30 more within 30 miles.
School data: U.S. Department of Education (NCES, EDFacts, F-33 school finance). The School Grade is our own summary of state test results and graduation rates, graded within Connecticut. Stars are from neighbors.