Best Cos Cob Public Schools (2026)

For the 2026 school year, there is 1 public school serving 343 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 33% of the student body (majority Hispanic), which is less than the Connecticut public school average of 55% (majority Hispanic).