For the 2026 school year, there is 1 public school serving 340 students in Cos Cob, CT (there are 2 private schools, serving 56 private students). 89% of all K-12 students in Cos Cob, CT are educated in public schools (compared to the CT state average of 89%).
The top-ranked public school in Cos Cob, CT is Cos Cob School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Cos Cob, CT public school have an average math proficiency score of 67% (versus the Connecticut public school average of 42%), and reading proficiency score of 67% (versus the 51% statewide average). Schools in Cos Cob have an average ranking of 8/10, which is in the top 30% of Connecticut public schools.
Minority enrollment is 37% of the student body (majority Hispanic), which is less than the Connecticut public school average of 54% (majority Hispanic).
Best Public Schools in Cos Cob, CT (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Cos Cob School
(Math: 65-69% | Reading: 65-69%)
Rank:
Rank:
8/
Top 30%10
300 East Putnam Ave.
Cos Cob, CT 06807
(203) 869-4670
Cos Cob, CT 06807
(203) 869-4670
Gr: K-5 | 340 students Student-teacher ratio: 9:1 Minority enrollment: 37%
Frequently Asked Questions
What are the top-ranked public schools in Cos Cob, CT?
The top-ranked public schools in Cos Cob, CT include Cos Cob School.
How many public schools are located in Cos Cob?
1 public schools are located in Cos Cob.
What percentage of students in Cos Cob go to public school?
89% of all K-12 students in Cos Cob are educated in public schools (compared to the CT state average of 89%).
What is the racial composition of students in Cos Cob?
Cos Cob public schools minority enrollment is 37% of the student body (majority Hispanic), which is less than the Connecticut public schools average of 54% (majority Hispanic).
Recent Articles
Preventing Suicide in Schools: 2026 Guide for Educators
Learn updated 2026 strategies for preventing suicide in schools, including warning signs, intervention plans, and school-wide mental health support.
The Impact of Social Media on Students (2026 Update)
Explore the impact of social media on students in 2026, including academic, mental health, and safety insights for parents and educators.